Door Arm Rest Week 8 Challenge

DOOR ARM REST

Aim:- Creation of door arm rest and add the thickness of 2.5mm.

Tooling axis:-

• It is the direction in which the component will be ejecting after the molding process is completed.
• The direction of the tooling axis should clear the maximum portion of the part.
• It should be selected in such a way that number of side cores will be minimum as it will add more cost to the process.

Procedure:-

CLASS A SURFACE

Tooling axis creation

• First, we will extract the base surface of class A and on that create the point and then create the Axis system at that point.
• As we have only three sidewalls, we need to create a tooling axis with a different method.
• Then create intersection curves in the Y direction and create sidelines on that curves here we have only one side wall so we will create a line passing through the point which we have created in the above steps at an angle of the draft in sketcher. Here angle taken is 5 degrees to get all faces feasible with tooling direction.
• Then create a bisecting line through X and Y direction tooling lines.
• After that create the dummy tooling axis in the Z direction.
• This line is the dummy tooling axis for our part.

Draft analysis

• Checking draft analysis with dummy tooling axis and if tooling axis is not correct then adjusting compass to get the surfaces as green.
• Then right-click – lock current orientation – cancel draft analysis – select line – line direction – compass direction.
• Then view – rest compass
• This line will be the main tooling axis.

Creating different tooling axis for the cavity and adjusting with the compass then creating a line with compass direction in Y – direction which is for slider.

Tooling Axis for side core:

Create the line in X- direction for side cores.

B surface creation

• Extract class A surface.
• Untrim extracted surfaces.
• Extrapolate to some extent.
• Use the trim and select the proper surface.
• Offset inward at 2.5 mm.
• Use edge fillet.

C surface creation

• Take outer boundary using boundary command of class A surface.
• Use a smooth curve.
• Use sweep command to create a surface using tooling axis and draft angle as 3 degrees.
• Create points and lines to split the surfaces as and where ever needed.
• Join the split surface with a multi-section surface.

Final body creation

• Join class A surface and C surface.
• Trim the resulting surface with B surface.
• Join the surface.
• The result is a completely close surface.

Solid-body

• Change to the part workbench.
• Create body.
• Surface base feature- close surface – select last join.

Final draft analysis

Result:

Created door arm rest and added thickness of 2.5 mm.