nmf_mt11021_w

NX Manufacturing Fundamentals

WorkbookApril 2007

MT11021 — NX 5

Publication Numbermt11021_w NX 5

Manual History

ManualRevision

UnigraphicsVersion

PublicationDate

Version 16.0 March 1999Version 17.0 January 2001Version 17.0 June 2001Version 18.0 September 2001Unigraphics NX September 2002Unigraphics NX 2 September 2003NX 3 November 2004NX 4 January 2006NX 5 April 2007

This edition obsoletes all previous editions.

Proprietary & Restricted Rights Notice

This software and related documentation are proprietary to UGS Corp.

© 2007 UGS Corp. All Rights Reserved.

All trademarks belong to their respective holders.

2 NX Manufacturing Fundamentals mt11021_w NX 5

Contents

The Manufacturing Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Create a Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Fixture Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Create a Setup Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Set the Machining Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Set the MCS, Part, Blank, Check Geometry and Mill Method . . . . . 6-1

Create a Cavity Milling operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Visualize and Verify. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Face Milling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Drilling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Post Processing and Shop Documentation. . . . . . . . . . . . . . . . . . . 11-1

©UGS PLM Software, All Rights Reserved NX Manufacturing Fundamentals 3

1Lesson

1 The Manufacturing Process

The workbook project consists of various aspects of designing and machininga part of a manufacturing assembly. The manufacturing assembly iscomprised of the work holding device, blank material, and the piece part, inthis case a bracket. The bracket part is considered to be the Master Modeland the work holding device and blank material are considered componentparts of the assembly.

The manufacturing processes or methods that you will use, in this workbook,may or may not be the same approach, in order or content, that you would useat your company. The end result, the final part, is the same. What is moreimportant, in this class, is gaining an understanding of the methodology andapplication of using the various manufacturing options of NX, allowing youto customize tool path generation to methods or processes that you havebecome familiar with.

©UGS PLM Software, All Rights Reserved NX Manufacturing Fundamentals 1-1

1

The Manufacturing Process

The following flowchart illustrates the Manufacturing process steps that youwill use when creating and processing tool paths in NX.

1-2 NX Manufacturing Fundamentals ©UGS PLM Software, All Rights Reserved mt11021_w NX 5

2

Lesson

2 Create a Clamp

In this section, you will create a clamp. Later, you will finish the setupassembly and create a setup sheet. You will then begin the process ofprogramming the part to completion.

Step 1: Open the part seedpart_in and save it as ***_clamp_1 where ***represents your initials.

Step 2: Create a rectangular shape extrusion as shown below. Enter theentire expression as the value in the length fields (i.e. BLLG=5.25).Locate the block at WCS of 0,0,0.

Note

Expression names used will aid you in referencing the valuesused later in this project.

BLLG=5.25 BLHT=0.75 BLWD=2.0


2

Create a Clamp

The extrusionis created and is positioned in the location specified.Note the orientation of the extrusion with respect to the WCS.Expressions are also stored for the three equations that werekeyed in. These expressions store the parameters used for theextrusion creation and allow the ability to modify the extrusion, ifso required, with minimal effort.

Step 3: Change the work layer to 61. Create three datums that passthrough the center of the part, based on width, length and heightas shown.


2

Create a Clamp

Step 4: Create a slot 2.0” long by 0.625” wide by 1.0” deep. Position the slotto center it on the datums as shown.


2

Create a Clamp

Step 5: Create a boss on one end of the clamp. Make the boss .5” diameterby .5” tall. Center it on the end of the clamp.


2

Create a Clamp

Step 6: Create a slot on the under side of the clamp. Create the slot .375”wide, .1875” deep and centered on the datum plane.


2

Create a Clamp

Step 7: Blend the four outside corners, with .25” radius as shown.

Step 8: Save and Close the part


3

Lesson

3 Fixture Assembly

In this section, you will complete the assembly for the machining setup. Mostof the setup has already been completed for you. Your task is to add twolocating pins to accurately position the raw stock.

Step 1: Open the assembly workbook_mfg and save it as***_workbook_mfg where *** represents your initials.

The current setup consists of the following:

a tooling plate with multiple mounting holes(workbook_tooling_plate)


3

Fixture Assembly

the designed part which is to be machined

the raw stock the part is being manufactured from


3

Fixture Assembly

a ’window frame’ designed to hold the part in place whilemachining. The frame is the remains of the raw stock,designed with small holding tabs that attach to the part. Aftermachining, the tabs are removed.


3

Fixture Assembly

a set of clamps, holding the stock in place during the machiningprocess


3

Fixture Assembly

Your task is to add two locator pins at the location indicated.

Step 2: Add the workbook_locator_pin to the assembly using the BODYreference set.

Note

The workbook_locator_pin is owned by another user andis write-protected. It may not be modified or saved. Theassembly file is owned by you and may be modified andsaved.

Step 3: Mate the locator pin to the tooling plate by applying the propermating conditions between the appropriate faces (A to A and Bto B).


3

Fixture Assembly

Tip

Use the mating conditions of Mate (B) and Center (A).

Step 4: Add the last locator pin at the other designated location.

Step 5: Save and Close the part


4

Lesson

4 Create a Setup Sheet

In this section, you will create a setup sheet showing the location of locatorpins, clamps, stock and the MCS of 0,0,0.

Step 1: Open the seedpart_in part and save it as ***_workbook_dwgwhere *** represents your initials.

Step 2: Add the ***_workbook_mfg to the assembly using the BODYreference set.

Step 3: Save the part.

Step 4: In the Assembly Navigator, turn off the display of theworkbook_stock file. This will all the designed part to display inthe drawing view.

Step 5: Enter the Drafting application and specify a drawing sheet wherethe units are inches, the scale is 1/8, the drawing size is A andthe drawing name is SETUP1.


4

Create a Setup Sheet

Step 6: Under Preferences, turn off Centerlines.


4


Step 7: Add views to the drawing as shown. The TFR-TRI view is 1/12scale (8.0833).



4


Step 9: Dimension the part as shown.

Step 10: Save and close the part.


5

Lesson

5 Set the Machining Environment

In this section, you will create a Machining Environment and definenumerous tools.

Step 1: Open the manufacturing assembly ***_workbook_mfg.

Step 2: Start the Manufacturing application and set the Configuration (1)to cam_general and the CAM Setup (2) to mill_planar. Initialize(3) the Machining Environment.

Step 3: In the Machine Tool view of the Operation Navigator, create aCarrier and 15 pockets. Number the pockets 1–15.


5

Set the Machining Environment


5

Set the Machining Environment

Step 4: Create the following tools:

Pocket ToolType Diameter Length Flute

Length# of

FlutesTip

Angle Material

1End

mill0.75 2 1.25 3 Carbide

2End

mill0.5 2 1.25 3 Carbide

3 Spotdrill 0.5 2 0.75 2 90 HSS

4 Drill 0.6875 3 2.0 2 135HSS-

Coated

5 BoringBar 0.75 3 0.125 1

CarbideTipped

Step 5: Save and Close the part.


6

Lesson

6 Set the MCS, Part, Blank, CheckGeometry and Mill Method

In this section, you will set the MCS, select the Part, Blank and Checkgeometry and then choose the Mill Method.

Step 1: Set the MCS and an associative clearance plane, .5” above theblank geometry.

Step 2: Open the Workpiece object and set the Part (1), Blank (2) andCheck (3) geometry as shown.


6

Set the MCS, Part, Blank, Check Geometry and Mill Method

Step 3: Set the Part material to aluminum.


6

Set the MCS, Part, Blank, Check Geometry and Mill Method

Step 4: Change the Program name to workbook_project.

Step 5: Change the amount of Part stock in the mill_rough Machiningmethod object to 0.05.



7

Lesson

7 Create a Cavity Milling operation.

In this section, you will create a Cavity Milling operation.

Step 1: Create a Cavity Mill operation as shown.

Program WORKBOOK_PROJECTTool EM-.75-0Geometry WORKPIECEMethod MILL_ROUGH


7

Create a Cavity Milling operation.

Step 2: Set the Cut Levels so the lowest cut level is at the face as shown.

Step 3: Set the Check Stock to 0.05.

Step 4: Generate the operation.


Step 6: In the Program Order view, copy the CM_ROUGH_1 operationand rename it to CM_ROUGH_2.


7

Create a Cavity Milling operation.

Step 7: Edit the CM_ROUGH_2 operation, change the tool to .500” endmill, turn on Use 3–D IPW, set the Global Depth of Cut to .1”.




8

Lesson

8 Visualize and Verify.

In this section, you will visually inspect and verify the previous tool pathsthat were created.

Step 1: Visualize and Verify the operations created in the previous section.



9

Lesson

9 Face Milling

In this section, you will create a Face Milling operation.

Step 1: Create a Face Milling operation to finish the faces.

Program WORKBOOK_PROJECTTool EM-.5-0Geometry WORKPIECEMethod MILL_FINISH


9

Face Milling

Step 2: Select all the faces, parallel in the XY plane as shown (dark areas).


Step 4: Verify the results.



10

Lesson

10 Drilling.

In this section, you will create drilling type operations.

Step 1: Create a spot drilling operation.

Program WORKBOOK_PROJECTTool SPOT_DRILLGeometry WORKPIECEMethod METHOD

Step 2: Spot drill the hole to a tip depth of .125.

Step 3: Create a drilling operation.

Step 4: Drill to model depth.

Step 5: Create a boring operation.

Step 6: Bore the hole to model depth.

Step 7: Verify the results



11Lesson

11 Post Processing and ShopDocumentation.

In this section, you will post process your tool paths and generate shopdocumentation.

Step 1: Post Process the workbook_project nc program.

Step 2: Create shop documentation for the workbook_project nc program.


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