Week 9 - Attachment Feature Creation (Ribs & Screw Boss) - Challenge 1

DOOR HANDLE

AIM:--

• To Create the Door Handle Component from the given Class-A surface.
• To Create the tooling axis for the given Class-A Surface meeting the requirements of the draft angle.
• To Attach B side Features in the component.
• To perform the Draft analysis on the model.

To be able to create solid from the given Class-A surface, by considering tooling axis and draft analysis.

1.The given Class-A surface:--

WHAT IS CLASS A SURFACE ?

It is an Asthetic surface and which is visible to the customers ie, Top surface,

2. CREATING TOOLING AXIS :--

The Tooling Direction is basically the direction that the mold pulls a part. The mold is built in two separate pieces, basically. You have a Cavity side and you have the Core side. The Core pulls apart from the Cavity and that's the Dye line or the Tooling Direction

4. CREATING CLASS B SURFACE:--

• Offset the CLASS-A Surface to 2.5mm in the inside direction.
• There will be some minor gaps in the fillets area try to fix them out.
• Then the CLASS-B Surface will be created.

5. CREATING CLASS C SURFACE

• Extract the boundary from the class A surface using boundary command.
• Using disassemble tool to divide the boundary as the boundary contains domains.
• Use sweep command > choose profile type line > subtype as with reffrence to surface > choose guide curve and surface> draft angle as 90 degree > preview.

6.FINAL TRIM

• Then you can join class a surface and class c surface
• After you can trim with class b surface

7.CLOSED SURFACE

• you can creat boundry for checking beacuse your surface is close

DRAFT ANALYSIS

The Draft Analysis command enables you to detect if the part you drafted will be easily removed. This type of analysis is performed based on color ranges identifying zones on the analyzed element where the deviation from the draft direction at any point, corresponds to specified values.

• Before going to drat analysis go to customized view parameter >under mesh >check material and then click ok.
• Now for draft analyses go to insert » analysis » feature draft analysis.
• Use the compasss to define the draft direction.
• In the colour scale change the draft angle to 3 degree.
• The component changes to green in indication of passing draft angle.
• Use running point to check the angle on the component.

8.RIBS

B SIDE FEATURES CREATION

Next, the profile is extruded, to find the height,h=Wall thickness * 5

=2.5*5

= 12.5 mm

Therefore, the height is 12.5 mm

The extruded surface is thickened,

Thickness,w=0.4*t

=0.4 2.5

=1mm

Therefore, the thickness of the rib is 1 mm

Then fillet is applied to the faces of the rib. As per the design rule, the fillet can be 0.25 mm.

9.SREW BOSS

The draft is applied to the sides of the ribs. As per the design rule, the ideal draft angle is 0.5 deg

10.DRAFT ANALYSIS