Tài liệu CATIA_-_Surface_Machining P2 pdf

Area-oriented MachiningArea-oriented machining is a method where you define all of the separate areas you want to machine on the part before assigning an operation to each one.. In this

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Generating an NC Output File

This task explains how to interactively generate NC code from the program you have just created

1 Save your program with File/Save as in the directory of your choice (here we have

a directory called models)

and call your program MySurfaceMachining

Press Save

2 Select Manufacturing Program.1 in the specifications tree and select Generate NC Code interactively in the contextual menu

Generating an output file

http://dsfr2e/itprm/doc/CXR7doc/doc/online/smgug/smguggs10.htm (1 of 3) [5/17/2001 3:07:01 PM]

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In the dialog box that is displayed, call your file SurfaceMachining (the aptsource suffix

is automatic) Browse to the directory where you want to save it (here we have chosen

to put it in the same directory as the CATProcess but this is not obligatory)

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The APT file can be read with any kind of text editor.

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Generating NC Shopfloor Documentation

This task explains how to interactively generate shopfloor NC documentation in HTML format from the program you have just created

1

The process documentation dialog box is displayed

2 Select the SurfaceMachinist4.CATScript file from the samples directory

Leave "Process" as the process name

Choose the directory where you want to store your new file (we have chosen

MyFiles, but this is not obligatory)

Leave "Process" in the Base field

Your NC document has been created

Press Done to close the dialog box

Generating workshop documentation

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Area-oriented Machining

Area-oriented machining is a method where you define all of the separate areas you want to machine on the part before assigning an operation to each one

In this tutorial you are going to learn how to:

define areas (including a rework area) on the part below,

define tools to use on the areas,

use a safety plane,

change a tool axis,

create an APT file and a workshop document

Entering the workbench Defining the areas to machine Defining the tools to use Sweep roughing the part Sweeping the top surface Sweeping the side areas ZLevel on vertical walls Reworking between contours Generating an output file Generating workshop documentation Area-oriented machining

http://dsfr2e/itprm/doc/CXR7doc/doc/online/smgug/smguggs15.htm [5/17/2001 3:07:36 PM]

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Entering the Workbench

This task shows you how to open a part and enter the Surface Machining workbench

1

Open the Gets2.CATPart in the samples directory

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

The Surface Machining workbench is displayed

The part is displayed in the viewer along with the manufacturing specifications

3 Press MB2 and MB3 at the same time and turn the part round so that it looks like this.

4 Double click Part Operation.1 in the tree In the dialog box that is displayed, click the

design part icon and click the part in the viewer

The double click anywhere in the viewer and press OK

This step is necessary for the visualization and analysis part of the process

Entering the workbench

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Entering the workbench

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Defining the Areas to Machine

This task teaches you how to define the specific areas on the part that you are going to machine You are going to define:

the whole part as a machining area for rough machining purposes four other areas for use with different cycle types

and a rework area

1.

2. Place your mouse cursor over the red, sensitive area in the dialog box and press

MB3

4. Click the part in the view The whole part is selected Double click anywhere in the

viewer to redisplay the dialog box

Defining the areas to machine

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5 Give the machining area a name Replace the text in the name box by Whole.

Click OK You have just created your first machining area

6. Now create an area on the top of the part Select the Machining area icon and click

(MB1 this time) on the red, sensitive area in the dialog box Now select the areas that you see selected in the picture below

Click on OK in the face selection toolbar

Call this area Top.

7. Now do the same for the left side of the part with these faces:

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Call this area Left.

8 Define a third area with these faces and call it Right.

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9 Finally, create the last machining area with the faces below and call it Bottom.

10.

The view should look like this:

material Select Whole in the manufacturing view

12.

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13. In the dialog box that is displayed, change the Entry diameter to 10 mm, the

Corner radius to 5 mm and the name to Rework.

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14. Press Compute to compute the area The rework area should look like this on the

part:

Press Close to close the manufacturing view

The next step is to define the tools that you will need to machine the areas you have just defined

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Defining the Tools to Use

This task defines the three tools that you are going to need to machine the part

1.

Click Manufacturing Program.1 in the PPR and then click the End mill tool change

icon If you cannot see this icon, use View > Toolbars and activate Auxiliary Operations

2 In the dialog box that is displayed, click the box to select a ball-end tool

and confirm with OK

Defining the tools to use

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6 Enter a value of 20 in the dialog box that is displayed.

Click OK

8 Now define a third tool that:

is ball end, has a diameter of 4 mm, and is called T3 End Mill D 04

should look like this:

We are now going to move on to the next step where you will rough machine the part

Defining the tools to use

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Rough Machining the Part

This task will show you how to rough machine the whole part using a sweep roughing operation

1.

2. Select Whole from the list of areas

3.

4.

Rough machining the part

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6. Press Replay to compute the operation The toolpath is displayed on the part.

Press OK to close the small dialog box that is displayed (bottom right)

Now you are going to machine the Top surface

Rough machining the part

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Sweeping the Top Surface

This task will show you how to sweep the top surface of the part and how to change a tool

1 In the manufacturing view, select the machining area called Top from the list of

areas

2.

3. In the strategy tab, give a stepover distance value of 1mm

4. Go to the geometry tab and make sure that Part autolimit is turned on

Now you are going to machine the sides of the part

Sweeping the top surface

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Sweeping the top surface

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Sweeping the Sides

This task is going to teach you how to:

sweep machining areas Left and Right and change the orientation of the tool axis

Tiêu đề	Area-oriented machining
Chuyên ngành	CATIA Surface Machining
Thể loại	Tutorial
Năm xuất bản	2001

Định dạng
Số trang	20
Dung lượng	234,12 KB