Tài liệu Manufacturing Infrastructure pptx

Tool Change Machine Rotation Machining AxisPP Instruction Copy Transformation Instruction Managing Manufacturing Entities Select Tool for Operation Edit Tool Edit Assembly Compensation P

Manufacturing Infrastructure Site Map

Tool Change Machine Rotation Machining Axis

PP Instruction Copy Transformation Instruction Managing Manufacturing Entities

Select Tool for Operation Edit Tool

Edit Assembly Compensation Patterns

Features Define Macros on a Milling Operation Define Macros on an Axial Machining Operation Status Management

Verification, Simulation and Program Output

Tool Path Replay Material Removal Simulation Interactive Generation of APT Source Code

Batch Generation of APT Source Code Batch Generation of Clfile Code

Batch Generation of NC Code Batch Generation of CGR File

NC Documentation Generation APT Import

VNC Access Machine Accessibility Advanced Tasks

Machining Process Toolbar Machine Management Toolbar Specification Tree

Customizing

NC Manufacturing Settings

Build a Tool Catalog

Access External Tool Catalogs

Clfile Formats Glossary

Index

NC Manufacturing Solutions enable you to define and manage NC programs dedicated to

machining parts designed in 3D wireframe or solids geometry using 2.5 to 5-axis machining techniques.

It offers an easy-to-use and easy-to-learn graphic interface that makes it suitable for shop

floor-oriented use Moreover, its leading edge technologies together with a tight integration with Version 5 design methodologies and DELMIA's digital manufacturing environment, fully satisfy the requirements of office programming NC Manufacturing is a unique solution that

reconciliates office and shop floor activities.

An integrated Post Processor engine allows the product to cover the whole manufacturing process from tool trajectory (APT source or Clfile) to NC data.

NC Manufacturing Infrastructure offers the following main functions:

Common platform for 2.5 to 5-axis axis machining capabilities, which include mill, drill and turn operations

Management of tools and tool catalogs

Flexible management of the manufacturing program with intuitive and easy-to-learn user interface based on graphic dialog boxes

Tight interaction between tool path definition, verification and generation

Knowledgeware customization facilities through f(x) formula and Edit search facilities Seamless NC data generation thanks to an integrated Post Processor Access solution Automatic shop floor documentation in HTML format

High associative level of the manufacturing program ensures productive design change management thanks to the integration with CATIA V5 modeling capabilities

Based on the Process Product Resources (PPR) model, the manufacturing applications are integrated with Digital Process for Manufacturing (DPM).

Certain portions of this product contain elements subject to copyright owned by the following entities:

© Copyright LightWork Design Ltd., all rights reserved.

© Copyright Deneb Robotics Inc., all rights reserved.

© Copyright Cenit, all rights reserved.

© Copyright Intelligent Manufacturing Software, all rights reserved.

© Copyright Walter Tool Data Management, all rights reserved.

What's New?

Tool Path Replay

Enhanced: Possibility to replay trajectory of contact point and/or tool tip or center point Enhanced: Possibility to pack and store tool path s

Enhanced: Possibility to display and replay transition paths

Lathe Machining

New: Integration of Lathe Machining product.

Please refer to the Lathe Machining User's Guide for more information.

Tool Axis

Enhanced: Improved tool axis considerations (angular definition, edition, and so on).

Feeds and Speeds

Enhanced: Possibility to specify cutting conditions on tools

DPM Power Train Integration

New: Capability to associate an In Process Model to the part operation.

NC Data Output

New: Cutter Location file (Clfile) support

Axial Machining Process

Enhanced: Extended rules definition capabilities

Machines

Enhanced: Selection of VNC machines and take VNC machine algorithms into account.

Tool Library

Enhanced: Support of cutting conditions

Copy Operation with Transformation

New: Support of Copy Transformation instruction.

PP Instructions

Enhanced: PP table support

Enhanced: Possibility to insert a PP word into an existing macro path

Getting Started

Before getting into the detailed instructions for using NC Manufacturing products, this section deals with some important concepts about your working environment

Manage Workbenches Manage Documents

Manage Workbenches

This section explains what happens when you open a design part and enter an NC Manufacturing workbench (Prismatic Machining, for example), and how to switch to and from Manufacturing and Design Workbenches

1. Select File -> Open then select the desired CATPart document.

2. Select NC Manufacturing > Prismatic Machining from the Start menu.

The Prismatic Machining workbench appears.

The part is displayed in the Set Up Editor window along with the manufacturing specification tree.

The CATPart is automatically associated to the Part Operation and an instance of the part is created

in the Product List.

3. Select Manufacturing Program.1 in the tree to make it the current entity.

To insert program entities such as machining operations, tools and auxiliary commands you can either:

make the program current before clicking the insert program entity command

click the insert program entity command then make the program current.

4. Double click the Part entity in the tree to switch to a Mechanical Design workbench (such as Part Design or Wireframe and Surface Design depending on your configuration).

5. Double click a Manufacturing entity in the tree to switch back to the Manufacturing workbench.

Manage Documents

This section shows how you can create a new CATPart document in the Product List dedicated for storing complementarygeometry

1.Set the Create a CATPart to store geometry checkbox in the Tools > Options > NC Manufacturing page

2.Open your design part and start the Manufacturing workbench as described in the previous section

Two CATPart documents are present in the Product list: the design part and a CATPart for storing ComplementaryGeometry in your Part Operation

This enables you to create geometry which may be necessary for your Manufacturing model without modifying thedesign part This geometry can be created by switching to a Design workbench as mentioned in the previous section

NC Manufacturing allows you to work in a multi-model environment

The CATProcess references one or more CATPart and/or CATProduct documents

You can have links between a CATProcess document and:

CATPart and/or CATProduct documents (design part, associated geometry, stock, and so on)

APT, Clfile or NC Code output (if associated during CATMfg generation)

Packed tool path files stored on disk (if these tlp files were stored)

CATPart documents relative to tool/tool assembly representation (if associated to a tool or assembly)

The links between documents can be visualized using the Edit > Links command.

These links can be managed with the TEAM PDM product

Basic Tasks

The basic tasks you will perform using CATIA NC Manufacturing products involve creating, editing and managing part operations, manufacturing programs and other entities of the CATIA manufacturing process.

Part Operations, Programs and Processes

Auxiliary Operations Managing Manufacturing Entities Verification, Simulation and Program Output

Part Operations, Programs and Processes

This section deals with creating and managing the following major entities of the NC Manufacturing environment

Create and Edit a Part Operation: Select the Part Operation icon then specify the entities to be referenced by thepart operation: machine tool, machining axis system, tool change point, part set up, and so on

Create and Edit a Manufacturing Program: Select the Manufacturing Program icon to add a program to thecurrent part operation then insert all necessary program entities: machining operations, tool changes, PP

instructions, and so on

Create a Machining Process: Select the Machining Process icon to create a machining process, which will bestored in a CATProcess document and then as a catalog component

Organize Machining Processes: In the Catalog Editor workbench, store the Machining Process as a Catalogcomponent

Apply a Machining Process: Select the Open Catalog icon to access the machining process to be applied toselected geometry

Part Operation

This task shows you how to create a part operation in the manufacturing process

When you open an NC Manufacturing workbench on a CATPart or CATProduct document, the manufacturingdocument is initialized with a part operation

1. Select the Part Operation icon

A new part operation is initialized in the manufacturing

process and a Part Operation entity is added to the tree

To access the parameters of the part operation, double

click the Part Operation entity in the tree or use the

contextual menu

The Part Operation dialog box appears

2. If needed, enter a new part operation name and assign

comments to the part operation

3. Click the Machine icon to assign a machine tool to the part operation

The Machine Editor dialog box appears

4. Select the desired type of machine tool by clicking the corresponding icon:

3-axis machine3-axis machine with rotary table5-axis machine

horizontal lathevertical lathe

The default characteristics of the selected machine type are displayed and the following parameters can beedited to correspond to your actual machine tool

Machine name and associated commentsNumerical control parameters such as PP words tableSpindle parameters

Tool change parameters including the Tools catalogRotary table parameters for 3-axis machine with rotary table

Just click OK to accept the machine parameters and return to the Part Operation dialog box

5. Click the Machining Axis icon to assign a reference machining axis system to the part operation

The Machining Axis dialog box appears

This is similar to the procedure described in Insert a Machining Axis Change

Output coordinates will be described in the specified axis system except when local machining axis systems areinserted in the program

6. Click the Product icon to associate an existing product (CATProduct) or part (CATPart) to the part operation.

This procedure is described in Set Up and Part Positioning

7 Select the Geometry tab to associate the following geometry to the part operation:

Design part: Just click the Design Part icon then select the desired geometry

This is useful if you want to do material removal simulations later

Stock: Just click the Stock icon then select the desired geometry

This is useful for certain surface machining operations and also for material removal simulations

Safety plane: Just click the Safety Plane icon then select the desired plane that will be used as aglobal safety plane for the part operation

In Process Model: Just click the In Process Model icon then select the desired CATPart in which InProcess Models are to be generated

This is only useful for the DPM Powertrain workbench

8 Select the Position tab to specify the following reference positions on the part operation:

tool change pointtable center setup

9 Select the Option tab to specify the type of NC output that is to be generated for Profile Contouring operations:

standard tool tip cutter profile

10. Click OK to create the part operation

The tree is updated with the new entity

Manufacturing Program

This task shows you how you can edit a manufacturing program

A number of capabilities are available for managing manufacturing programs:

Make the Manufacturing Program current in the specification tree

1. Create a drilling operation on a pattern of two holes

2. Create a spot drilling operation on the same holes

3. Create another drilling operation on another pattern of four

holes

The three operations are assigned the same default tool

4. Edit the spot drilling operation to assign a spot drill tool

Each operation now has an associated tool change

5. Right click the second Drilling operation and select the Cut command

6. Right click the first Drilling operation and select the Paste

Create a Machining Process

This task shows how to create a machining process that will be used to sequence a set of axial machining

operations

Select an NC Manufacturing workbench from the Start menu

No CATPart or CATProcess is needed at this stage

1. Select the Machining Process View icon

The Machining Process View dialog box appears

2. Select the Machining Process icon

The dialog box is updated with a new machining

process as shown

3. Select the Spot Drilling icon

The Operation Definition dialog box appears, if the Start Edit mode is selected in the Tools > Options NC

Manufacturing Operation settings

At this stage you can set certain parameters such as feeds and speeds and machining strategy parameters.However, there is only limited access to geometry parameters and it is not possible to specify a tool

Just click OK to add a reference Spot Drilling operation

to the machining process

The reference operation has an associated Tool Query

You can associate Formulas or Checks to the operation

and specify a Tool Query

The Formulas, Checks and Tool Query dialog boxes have 4 common areas:

all expressions of the current entity (tool query or machining operation and for a machining operation,either formulas or checks)

the commands list

area for editing the current expression with restrictions (you cannot do everything) and some helps byusing operator, function and unit combos To validate an edited expression, you have to select the Addbutton

all the possible attributes that you can use in an expression, according to the knowledgeware description:the different packages/dictionaries which group a set of object types: the 3 manufacturing

dictionaries (for machining features, activities and resources like tools) are always available.the object types list for the selected dictionary

the attributes list for a selected type: select one of them to insert it into the expression

For Tool Query dialog box a fifth area allows you to define the tool type and tool repository

4. In the same way add Drilling and Tapping operations to

the machining process by selecting first the Drilling icon

then the Tapping icon

The Machining Process View dialog box is updated as

shown

5. Right click the Spot Drilling operation in the Machining Process View and select the Edit formula command.The Formula Editor dialog box appears.

A formula is an expression associated to an operation or a machining feature attribute, which will be converted

to a F(x) formula when applying the machining process

Define the following formula: “the tool tip approach clearance is half the depth of the spot drill feature”

Click OK to assign the formula to the Spot Drilling operation

You can assign formula to the Drilling and Tapping operations in the same way

6. Right click the Spot Drilling operation in the Machining Process View and select the Edit Checks command TheChecks Editor dialog box appears

A check is a logical expression associated to the corresponding operation Inside a check, “and” and “or”

operators are available, and between several checks, an “and” operator is applied When applying the

machining process, the checks list is solved, a logical status is returned and the operation is created if thestatus is true

Define the following check : “ the spot drilling operation is only available for design holes with a diameter greaterthan 2mm.”

7. Double click the Tool Query associated to the Spot Drilling operation.The Tool Query Definition dialog box appears.

Define a simple tool query as shown below

8.

Select the tool repository to ToolSampleMP using the Look in combo.

Click OK to assign the tool query to the Spot Drilling operation

You can assign tool queries to the Drilling and Tapping operations in the same way(Drill D10.5 and Tap D12, for example)

9. Select File > Save As to save the machining process in a CATProcess document calledAxialMachiningProcess1.CATProcess, for example

Please keep this file open in order to do the Organize Machining Processes task

Organize Machining Processes

This task shows how to organize machining processes inside a catalog file

A catalog file allows you to display the machining processes list as you wish, by using the Catalog Editor workbench.This is also the only way to interactively apply a machining process

Select the Infrastructure > Catalog Editor workbench from the Start menu

All the CATProcess documents containing machining processes to be used in the catalog should be open

1. In order to store the Machining Process as a Catalog component, select the Catalog Editor workbench from theStart > Infrastructure menu

2. Click the Add Family icon to create a Component Family (for example, AxialMachiningProcesses).

Double click the AxialMachingProcesses component family in the graph

Click the Add Component icon The Description Definition dialog box appears

Click Select external feature then select AxialMachProcess1 in the Machining Process View of yourAxialMachiningProcess1.CATProcess file that you want to use as the catalog component

Click OK to make the machining process a component of the catalog family

3. Select File > Save As to save the catalog (catalogAxialMP1.catalog, for example)

Please refer to Apply a Machining Process for information about applying machining processes to geometry such

as design features and hole patterns

Apply a Machining Process

This task shows how to apply a machining process

The machining process application uses a standard mechanism of instantiation of features from a feature reference

In our case, the feature reference is the machining process to be applied

When applying a machining process, the following steps are executed for each operation:

Default mapping execution in case of geometry selection

Checks execution

Tool query execution

Cutting condition execution

Formulas solving

Open the desired CATPart document, then select the desired NC Manufacturing workbench from the Start menu

1. Select the Open Catalog icon and open the

catalog you created in the previous task:

The Insert Object dialog box appears allowing you

to apply the machining process

Two input types can be defined:

geometry to machine

insertion in program

The default geometrical input is the manufacturing

view, and if this is not redefined by selecting a

geometrical feature, you are in settings mode In

this case and if a geometrical reference is used in

checks, tool queries or formulas, an error

message is issued

Note that for drilling machining processes, from

any selection, if it is linked to a design pattern, this

pattern is taken as selected geometry

The program input only appears if the insertion

into program mode is activated If no operation is

yet inserted and only one machining program is

created, the machining program is the default

program input

4. Select the geometry to be machined: this can be either a design feature or a manufacturing pattern

Then click OK in the Insert Object dialog box.

5. The program is updated with the operationscontained in the machining process:

Auxiliary Operations

This section shows you how to insert auxiliary operations in the NC manufacturing program

Insert Tool Change: Select the Tool Change icon then select the tool type to be referenced in the tool change

Insert Machine Rotation: Select the Machine Rotation icon then specify the tool rotation characteristics

Insert Machining Axis System or Origin: Select the Machining Axis or Origin icon then specify the characteristics

of the machining axis system or origin

Insert PP Instruction: Select the PP Instruction icon then enter the syntax of the PP instruction

Insert Copy Transformation Instruction: Select the reference operation then select the Copy Transformation icon.You can then specify the number of copies and the characteristics of the transformation

Insert a Tool Change

This task shows how to insert tool changes in the program

You can either add tool changes locally or generate all necessary tool changes automatically in the program

1 To add a tool change locally:

In the specification tree, select the program entity after which you want to add the tool change

2. Select the desired icon in the Tool Change toolbar

The corresponding dialog box appears for defining the tool change

3. Select the Tool tab page in order to specify the tool to be referenced by the tool change You can do this byeither:

creating a new tool

selecting another tool that is already used in the document

selecting another tool either in the document or in tool catalogs by means of a query

This is the same procedure as described in Select or Create a Tool

4. Select the Tool Assembly tab page if you want to specify the geometric and technological characteristics ofthe tool assembly.

In this case a tool assembly is added to the Resource List in the specification tree

5. Select the Syntax tab page

Select the Initialize from PP words table checkbox to consult the tool change syntax defined in the PP

table that is referenced by the Part Operation

Otherwise, enter a PP instruction for your tool change This user-defined syntax has no link with the PP

table and its validity is not checked by the program

If the PP Instruction comprises a sequence of PP word syntaxes, you can choose the sequence to be used

by means of the Sequence number spinner.

6. Click OK to create the tool change in the program

You can click Replay to visualize the tool at the tool change point

This point is specified in the current part operation

1 To generate tool changes automatically:

Right click the Manufacturing Program entity in the specification tree and select Generate Tool Changes from thecontextual menu

The program is updated with all necessary tool changes

2 To delete tool changes that were automatically generated :

Right click the Manufacturing Program entity in the specification tree and select Delete Generated Tool Changesfrom the contextual menu

All tool changes that were automatically generated are removed from the program

Insert a Machine Rotation

This task shows how to insert a machine rotation in the program

You can either add machine rotations locally or generate all necessary machine rotations automatically in the

program

Either the program or a program entity must be current in the specification tree

1 To add a machine rotation locally:

In the specification tree, select the

program entity after which you want to

add the machine rotation, then select the

Machine Rotation icon

The Machine Rotation dialog box

appears

2. Select the Properties tab page to

specify the characteristics of the Machine

rotation

3. Select the rotary direction:

ClockwiseCounter-clockwiseShortest

4. Enter the value of the rotary angle

The machine table is rotated by this angle about the rotary axis (A, B or C) This axis is defined on the machinereferenced by the Part Operation

The rotary type is set to Absolute in this version

5. Select the Syntax tab page

Select the Initialize from PP words table checkbox to consult the machine rotation syntax defined in the

PP table that is referenced by the Part Operation

Otherwise, enter a PP instruction for your machine rotation This user-defined syntax has no link with the

PP table and its validity is not checked by the program

6. Click OK to accept creation of the machine rotation in the program

1 To generate machine rotations automatically:

Right click the Manufacturing Program entity in the specification tree and select Generate Machine Rotations fromthe contextual menu

The program is updated with all necessary machine rotations

2 To delete machine rotations that were automatically generated:

Right click the Manufacturing Program entity in the specification tree and select Delete Generated MachineRotations from the contextual menu

All machine rotations that were automatically generated are removed from the program

Insert a Machining Axis or Origin

This task shows how to insert a machining axis or origin auxiliary operation in the program

A feature representation of the corresponding axis system will be created in the 3D view

Output coordinates are computed in the current machining axis system as shown in the example below.Tool path computed in machining axis system AXS1 with origin (0,0,0):

Either the program or a program entity must be current in the specification tree

1. Select the Machining Axis or Origin icon

The corresponding dialog box is displayed directly

at the Geometry tab page

You can define your axis system with the help of

the sensitive icon in the dialog box

2. Select the symbol representing the origin in the

sensitive icon

3. Select a point or a circle to define the origin of the

machining axis

4. Select one of the axes (Z, for example) in the

sensitive icon to specify the orientation of that axis

The following dialog box appears

The Z axis is the privileged axis You should define

it first, then specify the X axis The XY plane is

always perpendicular to the Z axis

5. Select the desired method to specify the orientation using the combo:

Manual In this case, choose one of the following:

Coordinates to define the orientation by means of X, Y and Z components Angles to define the orientation by means of a rotation of the X, Y or Z axis The rotation is

specified by means of one or two angles

Selection In this case just select a line or linear edge to define the orientation.

Points in the View In this case just select two points to define the orientation.

Just click OK to accept the specified orientation

6. Repeat this procedure to specify the orientation of another axis (X, for example)

The specified origin along with the X and Z axes are sufficient to define the machining axis system

You can also define a machining axis by selecting one of the triangular areas in the sensitive icon

You can then select an existing axis system and position it by selecting a point in the 3D view

7 You can click the Origin checkbox if you want to specify an origin.

For certain machine types it may be useful to specify an origin number and group This will result in the

following type of output syntax:

8. You can enter a name for the machining axis or origin to be created This name will be visualized beside therepresentation of the axis system in the 3D view

9 Select the Syntax tab page

Select the Initialize from PP words table checkbox to consult the Machining Axis or Origin syntax

defined in the PP table that is referenced by the Part Operation

Otherwise, enter a PP instruction for your machining axis or origin This user-defined syntax has no link

with the PP table and its validity is not checked by the program

10. Click OK to create the machining axis or origin auxiliary operation in the program

A feature representation of the corresponding axis system is created in the 3D view

Insert a PP Instruction

This task shows how to insert a PP instruction in the program

Either the program or a program entity must be current in the specification tree

1. In the specification tree, select a

reference program entity The PP

instruction will be added after this

entity in the program

2. Select the PP Instruction icon

The Post-Processor Instruction dialog

box appears

3. Enter the syntax of a PP instruction

You can do this in the following ways:

enter one or more PP wordsyntaxes directly in the textfield

click the icon to access the

PP words table that isreferenced in the current partoperation

You can then selectpredefined syntaxes from thistable using the dialog box thatappears

Please note that the program does not check the validity of your syntax

4. Click OK to create the PP instruction in the program

Insert a Copy Transformation Instruction

This task shows how to insert a Copy Transformation instruction in the program

Either the program or a program entity must be current in the specification tree

1. Select the Copy Transformation icon

2. In the specification tree, select the

program entity after which you want to

add the instruction

The Copy Transformation dialog box

appears

3. Choose the desired transformation

type: translation or rotation, then set

the corresponding parameters

4. Click OK to create the Copy Transformation instruction in the program

Managing Manufacturing Entities

This section deals with creating and managing the specific entities of the NC Manufacturing environment (other than

machining operations and auxiliary commands)

Edit the Tool of a Machining Operation: Double click the machining operation in the program and select the Tooltab page to edit the tool characteristics or search for another tool

Edit a Tool in the Resource List: Double click a tool in the resource list and edit the tool characteristics in the ToolDefinition dialog box

Edit a Tool Assembly in the Resource List: Double click a tool assembly in the resource list and edit the toolcharacteristics in the Tool Definition dialog box

Specify Tool Compensation Information: Double click a tool referenced in the program or resource list and specifythe tool compensation information in the Compensation tab page of the Tool Definition dialog box

Create and Use Machining Patterns: Select Insert > Machining Feature > Machining Pattern then select a pattern

Edit the Tool of a Machining Operation

This task shows you how to edit the tool of a machining operation

A machining operation always has a tool assigned to it (default tool, for example)

You can modify this tool in several ways:

edit its characteristics, thereby creating a new tool

replace it by selecting another tool that is already used in the document

replace it by selecting another tool by means of a query

1. Double click the operation in the program, then select the Tool tab page

2 To create a new tool:

If you want to change tool type, select the icon

corresponding to the desired tool type

In this case the corresponding tool representation

appears in the 2D viewer

Double click the geometric parameter that you

want to modify in the 2D viewer, then enter the

desired value in the Edit Parameters dialog box

that appears

Modify other parameters in the same way

The tool representation is updated to take the new

values into account

Click More to expand the dialog box to access all

the tool's parameters

Modify the values as desired

Use the spinner to increment the Tool number

Enter a name for the new tool

3 To select a tool that is already used in the document:

Select the button opposite Name

Select the desired tool from the list of tools already used in your document

The tool representation is displayed in the 2D viewer It can be edited as described above

4 To select another tool by means of a query:

Click the Select a tool with query icon opposite Name.

The Search Tool dialog box appears

Use the Look in combo to specify where you want to search for the tool:

in the current document,

in a tool catalog

in an external tool database such as the Walter TDM (Tool Data Management) or CATIA Version 4Manufacturing database

in a Feeds and Speeds catalog

If you want to change tool type, select the icon corresponding to the desired tool

You can do a quick search in the Simple tab page by means of a character string on the tool name or a

value for the tool's nominal diameter

The tools meeting the simple search criteria are listed

Select the desired tool from the list and click OK

The tool representation is displayed in the 2D viewer It can be edited as described above

You can search a tool using finer constraints by selecting the Advanced tab page

The example below shows the result of a search for a tool with body diameter between 8mm and 12mm in thecatalog ToolsSample02

5. Click OK to confirm using this new tool in the operation.

The following feed and speed data are supported: cutting speed (Vc) and feedrate/tooth/rotation (Sz) of themilling/drilling tool or lathe insert

D = tool diameter for milling/drilling or the average machining diameter for lathe machining in mm

Vc = cutting speed of the tool or insert

Vf (machining feedrate in mm/rev) = Sz * Z * N

where:

Sz = feedrate / tooth / revolution on the tool

Z = number of teeth on the tool (MFG_NB_OF_FLUTES) or 1 for a lathe tool insert.

Finishing data is used if the operation is finishing type (for example, Profile finishing in Lathe Machining ) or if itincludes a finishing feedrate Otherwise Roughing data is used