Project

Attachment Feature Creation (Ribs & Screw Boss)

Methodology opted for Attachment Feature Creation (Ribs & Screw Boss) :

STEP 1: CREATION OF TOOLING AXIS:

Create a tooling axis on a given model (base bracket) by selecting convienient to the drafting analysis'

click on point
select the surface one dialoge box wll appear select surface and click on ok.
click on line and select point-direction in dialog box and click on point and click on ok.

STEP 2: DRAFTING ANALYSIS ON CLASS-A SURFACE:

click on insert---analysis---FEATURE DRAFT ANALYSIS
Drag the compass to the tooling axis
click on compass in the dialog box---drag some distance---lock it---select the surface with respect to the tooling axis.
If the entire surface is appear in green in clour the drafting analysis is correct if not make corrections according to it.

STEP 3: CREATION OF CLASS-B SURFACE:

click on extract command click on surface and click on ok.
click on untrim command and click on surface and click on ok.
click on extrapolate command and click on surface and click on ok.
click on off-set command and click on surface give a value of 2.5mm and click on ok.
click on multi body projection--click on edges of surface and select one guide curve and click on ok.
click on trim command to trim the exta surface acording to the need.
click on edge fillet command and give the fillet value of 3mm and 1 mm at the edges.

STEP 4: CREATION OF CLASS-C SURFACE:

click on boundary command and click in edge of the surface and give the limit and click on ok.
click on draft command and give the draft angle and give the value of 2.9 and click on ok.
click on extrapolate command and click on surface and click on ok.
click on trim command to trim the exta surface acording to the need.

STEP 5: CREATION OF CLASS-A,B,C SURFACE:

Click on jion command to join all the surfaces to make it as acomplete surface model.

STEP 6: CREATION OF SOLID:

Click on start, click on mechanical desigan--part design'
click on part body, click on define part body, and click on fill surface and click on ok.

STEP 7: DRAFT ANALYSIS SOLID MODEL:

click on insert---analysis---FEATURE DRAFT ANALYSIS
Drag the compass to the tooling axis
click on compass in the dialog box---drag some distance---lock it---select the surface with respect to the tooling axis.
If the entire surface is appear in green in clour the drafting analysis is correct if not make corrections according to it.

Step 8: Creation of Ribs:

click on line command--draw two lines by constraining with axis--click on ok.
Insert part body--define the work object--click on rib command--and give the value of 5*thickness of surfaceand click on ok.
Use boolean operations to add the ribs to the part body and change the add to uninon trim to remove extra faces and click on ok.
click on edge fillet command and give the value of 0.25 and click on ok.

Step 8: Creation of Screw Boss:

click on circle command--draw two circles by constraining with axis--click on ok.
Insert part body--define the work object--click on pad command--and give the value of 5*thickness of surfaceand click on ok.
Use boolean operations to add the circles(Bose Screws) to the part body and change the add to uninon trim to remove extra faces and click on ok.
click on edge fillet command and give the value of 0.25 and click on ok.

General Guidelines for Bosses:

STEP 3: DRAFTING ANALYSIS ON SOLID SURFACE:

click on insert---analysis---FEATURE DRAFT ANALYSIS
Drag the compass to the tooling axis
click on compass in the dialog box---drag some distance---lock it---select the surface with respect to the tooling axis.
If the entire surface is appear in green in clour the drafting analysis is correct if not make corrections according to it.

Ship work like this
in your own course.