Attachment Feature Creation (Ribs & Screw Boss)

1.Class A:
Class A surface are primary used in the automotive environment and rrefer to these surfaceswhich are visible to outside world or to the humans..Class A surfaces are those surfaces ,whichare vivible to us (interior/exterior) and have an shape and high surface quality.

2.Class B:
class B are secondary surfaces that goes fee sometimes ,but are less impoortant sucha s theinside of your glovebox,ash tray etc., these must be smooth and as well ,but aare not held to thestandard thst class A surface.

3.Class C:
class C surface is the thickness between the class A and class B ,so there is no need of high endfinishing in class c surfaces.

Steps in creating class A ,class B, Class c surfaces:

Step1:

Creating Tooling axis.

• Go to insert and select Geometrical set parent and then define the tooling axis.
• create a point with the help of point command.
• Create a line and make it as axis and chose the direction of the axis as Y -axis.

Step2:

Perform the draft analysis -1 :

• Change the mode of view into materialistic mode Go to insert - click on analysis - feaured draftanalysis.
• Drag the mini robot(direciton axis system) on to the axsis that we created.
• Click direction symbol and adjust the mini robot on the same axis.
• Lock the direction with the help of lock command.
• Click on the surface which need to be done draft analysis.

Step3:

Publication

• Select the CLass A surface - Tooling Axis -click on publication click on yes ,and click on ok.

Step4:

Creation of Class B surface

• Insert Geometrical set(class B) under Geometrical set-1 define Class B with the help of the following commands done the class B
  
  
• Select the Class A surface and perform an offset of 2.5 mm.
• Fill the space with the help of Multi Scectional Surface command.
• Now, Join the Offset and Multi Scectional Surface by the use of JOIN command.
• Publish Class B.

Step5:

Creation of Class C

• Insert geometrical set under(Geometric Set 1) and click on ok.
• Define class C,click onboundary condition select the boundary and select limit 1 and limit 2 click on ok.
• Click on sweep surface and sweep the boundary.
• Repeat the same curve on all surfaces.
• Join all the surfaces.
• Extrapolate the unjoined surfaces and trim them.
• After joining Publish Class C.

Step 6:

Creation of ABC

• Click on insert geometrical set AC under input and then click on ok
• Define the ABC
• Join everything(class A,class C,class B) using join command.
• Publish ABC.

Step7:

Perform the draft analysis -2 :

• Change the mode of view into materialistic mode Go to insert - click on analysis - feaured draft
  analysis.
• Drag the mini robot(direciton axis system) on to the axsis that we created.
• Click direction symbol and adjust the mini robot on the same axis.
• Lock the direction with the help of lock command.
• Click on the surface which need to be done draft analysis.

Step 8:

Creation of Close surface:

• Go to Mechanical Design - Part Body.
• Define Part Body and then Select the ABC Body and Click on CLOSE SURFACE command.

Step 9:

Creation of Ribs:

• Insert Geometric set(Ribs) under Geometric set 1.
• Sketch two lines.
• Create a body(Ribs) under Part Body.
• Pad The Lines of thick profile and thin pad of neutral fiber.
• Draft the pad with 0.5deg angle with the pulling direction of the tooling axis.
• select the union trim and Trim the ribs with part body.
• Apply the edge fiilets to the ribs with radius 0.25 mm.

Step 10:

Perform the draft analysis -3 :

• Change the mode of view into materialistic mode Go to insert - click on analysis - feaured draft
  analysis.
• Drag the mini robot(direciton axis system) on to the axsis that we created.
• Click direction symbol and adjust the mini robot on the same axis.
• Lock the direction with the help of lock command.
• Click on the surface which need to be done draft analysis.

Step 11:

Creation of Screw Boss:

• Insert Geometric set(Screw Boss) under Geometric set 1.
• Sketch two circles.
• Create a body(Screw Boss) under Part Body.
• Pad The Circles
• Draft the pad with 0.5deg angle with the pulling direction of the tooling axis.
• Select the Union trim command and trim the screw bosses with part body.
• Apply the edge fiilets to the Screw Bosses with radius 0.25 mm.

Step 12:

Perform the draft analysis -4 :

• Change the mode of view into materialistic mode Go to insert - click on analysis - feaured draft
  analysis.
• Drag the mini robot(direciton axis system) on to the axsis that we created.
• Click direction symbol and adjust the mini robot on the same axis.
• Lock the direction with the help of lock command.
• Click on the surface which need to be done draft analysis.

Step 13:

Publishing of Part body: