Bạn đang muốn học phần mềm NX mới nhất một công cụ không thể thiếu cho dân cơ khí, một trong tứ đại CADCAM? NX 10 for beginners là bộ tài liệu NX 10 bằng tiếng Anh đầy đủ từ A đến Z đang rất hot. Hiện nhiều trung tâm đang bán online với giá rất cao nhưng nay bạn có thể có được nó với giá cực rẻ chưa từng thấy.
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NX 10 For Beginners
Tutorial Books
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This book may not be duplicated in any way without the express written consent of thepublisher, except in the form of brief excerpts or quotations for the purpose of review Theinformation contained herein is for the personal use of the reader and may not beincorporated in any commercial programs, other books, database, or any kind of softwarewithout written consent of the publisher Making copies of this book or any portion forpurpose other than your own is a violation of copyright laws
Limit of Liability/Disclaimer of Warranty:
The author and publisher make no representations or warranties with respect to theaccuracy or completeness of the contents of this work and specifically disclaim allwarranties, including without limitation warranties of fitness for a particular purpose Theadvice and strategies contained herein may not be suitable for every situation Neither thepublisher nor the author shall be liable for damages arising here from
Trademarks:
All brand names and product names used in this book are trademarks, registeredtrademarks, or trade names of their respective holders The author and publisher are notassociated with any product or vendor mentioned in this book
Trang 12Make Perpendicular Label Notch Blend
Exercises
Trang 13Examples
Trang 15Start a new drawing using the Sample Template Example 2
Trang 16Convert to Sheet Metal Wizard Resize Bend Radius
Trang 17Offset Surface Variable Offset Offset Face
Extract Geometry Trimmed Sheet Trim and Extend Extension Surface Untrim
Delete Edge
Patch Openings Fill Surface
Sewing Surfaces Thicken
Trang 18Welcome to the NX 10 for Beginners book This book is written to assist students,
designers, and engineering professionals It covers the important features andfunctionalities of NX using relevant examples and exercises
This book is written for new users, who can use it as a self-study resource to learn NX Inaddition, it can also be used as a reference for experienced users The focus of this book ispart modeling, assembly modeling, drawings, sheet metal, and surface design
Chapter 8, “Assemblies”, explains you to create assemblies using the bottom-up and
Trang 19Chapter 11, “Surface Design”, covers how to create complex shapes using surfacedesign commands
Trang 21The parameters and constraints that allow you to have control over the design intent Thedesign intent describes the way your 3D model will behave when you apply dimensionsand constraints to it For example, if you want to position the hole at the center of theblock, one way is to add dimensions between the hole and the adjacent edges However,when you change the size of the block, the hole will not be at the center.
Trang 22You can make the hole to be at the center, even if the size of the block changes To do this, you need to delete the dimensions and apply the
Midpoint constraint relationships between the hole point and the horizontal
and vertical edges Now, even if you change the size of the block, the hole will always remain at the center.
The other big advantage of NX is the associativity between parts, assemblies and
drawings When you make changes to the design of a part, the changes will take place inany assembly that it is a part of In addition, the 2D drawing will update automatically
Trang 24To start NX 10, click Start > All Programs > Siemens NX 10.0 > NX 10.0 On the
Welcome screen, click Home > New to open the New dialog On this dialog, click the
Model template, and then click OK The files created in NX have an extension prt.
Trang 26The File Menu appears when you click on the File icon located at the top left corner of the window The File Menu has a list of self-explanatory menus You can see a list of recently opened documents under the Recently Opened Parts section You can also
switch to different applications of NX
Ribbon
A ribbon is a set of commands, which help you to perform various operations It has tabsand groups Various tabs of the ribbon are:
Trang 27This ribbon tab has the commands to create expressions, part families, movies, fasteners
Trang 28In the Drafting template, you can generate orthographic views of the 3D model The
ribbon tabs in this template contain commands to generate 2D drawings
Sheet Metal ribbon
The commands in this ribbon help you to construct sheet metal components
Some tabs are not visible by default To display a particular tab, right-click on the ribbonand select it from the list displayed
You can also add a ribbon tab by opening the Customize dialog.
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Menu
Menu is located on the Top Border Bar It has various options (menu titles) When youclick on a menu title, a drop-down appears Select any option from this drop-down
Trang 31This is available below the graphics window It shows the prompts and the action takenwhile using the commands
Trang 32Additionally, NX 10 provides you with the Touch Panel and Touch Tablet roles These tworoles help you to use NX on a Touch screen PC or tablet
Trang 33When you execute any command in NX, the dialog related to it appears A dialog has ofvarious options The following figure shows various components of a dialog
This textbook uses the default options on the dialog If you have made any changes on a
dialog, click the Reset button on the dialog; the default options appear.
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Various functions of the mouse buttons are:
Left Mouse button (MB1)
When you double-click the left mouse button (MB1) on an object, the dialog related to theobject appears Using this dialog, you can edit the parameters of the objects
Trang 36To change the background color of the window, click Menu > Preferences >
Background On the Edit Background dialog, click the Plain option to change the
background to plain Click on the color swatches On the Color dialog, change the background color and click OK twice.
Trang 38NX offers you with the help system that goes beyond basic command definition You canaccess NX help by using any of the following methods:
Trang 41This chapter covers the methods and commands to create sketches used in the modeling environment The commands and methods are discussed in context to the part-modeling environment In NX, you can create sketches in two environments: Part andSketch task environment You will learn to create sketches in both the environments
part-
In NX, you create a rough sketches, and then apply dimensions and constrains that defineits shape and size The dimensions define the length, size, and angle of a sketch element,whereas constrains define the relations between sketch elements
command, and then define a plane on which you want to create the sketch To do this,
click Home > Direct Sketch > Sketch on the ribbon Next, click on any of the Datum Planes located at the center of the graphics window On the Create Sketch dialog, click
OK to start the sketch You can now start drawing sketches on the selected plane After
creating the sketch, click Home > Direct Sketch > Finish Sketch on the ribbon to finish
the sketch
Trang 43lines Continue to click to add more line segments You can right-click in the graphics
window and click OK, if you want to end the chain You will notice that the Profile
command is still active You can create another chain of line segments or press Esc todeactivate this command
The Profile command can also be used to draw arcs continuous with lines Click the Arc icon on the Profile dialog to draw this type of arc The figure below shows the procedure
The Arc command
Trang 44This command creates an arc using two methods: Arc by 3 Points and Arc by Center
to define the end point After defining the start and end of the arc, you need to define thesize and position of the arc Move the pointer and click to define the radius and position ofthe arc
The Rectangle command
This command creates a rectangle using three different methods: By 2 Points, By 3
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The 2 Points method
This method creates a rectangle by defining its diagonal corners Activate the Rectangle command (On the ribbon, click Home > Direct Sketch > Rectangle) On the Rectangle dialog, click By 2 Points and click to define the first corner Drag the pointer and click to
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The Polygon command
This command provides a simple way to create a polygon with any number of sides
Activate this command (On the ribbon, click Home > Direct Sketch > More Curve >
Polygon) and click in the graphics window to define the center of the polygon As you
Trang 48define the major and minor radius
On the dialog, type-in a value in the Angle box or drag the angle modifier on the ellipse to define the rotation angle of the ellipse On the dialog, click OK to create the ellipse.
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You can add Driving dimensions to a sketch by using the Rapid Dimension command.
You can use this command to add all types of dimensions such as length, angle, anddiameter and so on This command creates a dimension based on the geometry you select
For instance, to dimension a circle, activate the Rapid Dimension command, and then
click on the circle Next, move the pointer and click again to position the dimension; youwill notice that a box pops up Type-in a value in this box, and then press Enter to updatethe dimension
If you click a line, the Rapid Dimension command automatically creates a linear
dimension Click once more to position the dimension, and then type-in a value and pressEnter; the dimension will be updated
On the Rapid Dimension dialog, click Close to deactivate the Rapid Dimension
Trang 52When creating sketches for a solid or surface feature, NX will not allow you to constrain the geometry The term ‘over-constrain’ means adding more dimensions thanrequired The following figure shows a fully constrained sketch If you add another
over-dimension to this sketch (e.g diagonal dimension), the Update Sketch message pops up.
It shows that the dimension over constrains the sketch If, you click OK, all thedimensions in the sketch will become red
Now, you have to make one of the dimensions as a Reference dimension Click on the
diagonal dimension and select Convert to Reference on the contextual toolbar The
Convert Dimension to Reference message appears Click OK to convert the dimension
to reference The reference dimension will be in brown color Now, if you change thevalue of the width, the reference dimension along the diagonal updates, automatically.Also, note that the dimensions, which are initially created, will be driving dimensions,whereas the dimensions created after fully defining the sketch are driven dimensions
Trang 53NX creates dimensions automatically when you draw a sketch However, if you do not
want dimensions to be created automatically, then deactivate the Continuous Auto
Dimensioning command (on the ribbon, click Home > Direct Sketch > More > Continuous Auto Dimensioning).
Trang 55This constraint makes the center points of arcs, circles or ellipses coincident Select a
circle or arc from the sketch Select another circle or arc Click Concentric on the
Trang 56Collinear
This constraint forces a line to be collinear to another line The lines are not required totouch each other
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Constraints can also be applied automatically by activating the Create Inferred
Constraints command Activate or deactivate Create Inferred Constraints by clicking Direct Sketch > More > Create Inferred Constraints on the ribbon With this command
turned on, constraints are applied automatically when the sketch elements are created You
can define which constraints to apply automatically by using the Inferred Constraints
and Dimensions dialog On the ribbon, click Home > Direct Sketch > More > Inferred Constraints and Dimensions On the Inferred Constraints and Dimensions dialog,
close the dialog
Display Sketch Constraints
Trang 59As constraints are created, they can be viewed using the Display Sketch Constraints button (On the ribbon, click Home > Direct Sketch > More > Display Sketch
Constraints) When dealing with complicated sketches involving numerous constraints,
active.
Trang 63This command creates a parallel copy of a selected element or chain of elements Activate
this command (On the ribbon click Home > Direct Sketch > Offset Curve) and select an
element or chain of elements to offset After selecting the element(s), type-in a value in
the Distance box On the Offset Curve dialog, click the Reverse Direction button to reverse the side of the offset Check the Symmetric Offset option to create a parallel copy
on both sides Set the Cap Options to Arc Cap to create arcs at the corners On the dialog, click OK The parallel copy of the elements will be created.
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10 Click on the two horizontal lines at the bottom Select Collinear from the contexttoolbar; the selected lines become collinear.
11 Click on the two horizontal lines at the bottom Select Equal Length from the
context toolbar; they become equal in length
12 Select the small vertical lines, and then click the Equal Length icon to make their
lengths equal
13 Select the inclined line on the left side and click the Vertical icon.
Trang 6720 Likewise, apply a linear dimension to the bottom horizontal and left vertical lines.The dimension value are 120 and 100, respectively.
21 On the ribbon, click Home > Direct Sketch > Circle Click inside the sketch region to define the center point of the circle Move the pointer and click to define the diameter Likewise, create another circle.
22 Select the two circles and click Equal Radius on the Context Toolbar The
diameters of the circles will become equal
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20 Likewise, create another circle concentric to the small arc located on the left side.
21 On the ribbon, click Home > Direct Sketch > More > Make Symmetric.
22 Click on the large arcs on both sides of the Y-axis
23 axis
Trang 79Extrude and revolve features are used to create basic and simple parts Most of the times,they form the base for complex parts as well These features are easy to create and require
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Revolve Features
Revolve is the process of taking a two-dimensional profile and revolving it about a
centerline to create a 3D geometry (shapes that are axially symmetric) While creating a
Click on a line to define the axis of revolution The sketch will be revolved by full 360
degrees If you want to enter an angle of revolution, type-in a value in the End box and
press Enter On the dialog, click OK to complete the Revolve feature.