Challenge

Week 9 - Attachment Feature Creation - Challenge 2

Aim: To create the Dog House for the Door Trim by considering the design rules.

Tooling axis:

  • The axis is the direction in which the mold opens or else the core and cavity open. The tooling axis should help to clear components from the core and cavity, so it plays a very crucial role in plastic designing and manufacturing also.

Draft Angle:

  • Draft angle is the degree of taper that is incorporated into the side wall and part, core, and cavity of the die-cast tool to aid in the removal of a part. Primarily, their function is to reduce the friction between the part and the tool as it is ejected. Without draft angles, parts can be stripped, dented, or get stuck in the tool.
  • Draft angle also reduces the friction between the part, core, and cavity and also reduces the production time as it is easy to reject the part from the core and cavity.

Draft Analysis:

  • As the name suggests, draft analysis is nothing but checking the draft angle range i.e., whether the angle is in the ideal range of 3 degrees or not.
  • In this analysis we have a colour scale where we can see the range of a specific colour and we can even change the range by double-clicking on the number.
  • To do draft analysis go to insert-Analysis-Featured Draft analysis.

Steps to create a Main tooling axis by using the bisecting method and draft analysis concerning the tooling axis:

  • First of all, check all the directions of the component to find the best tooling axis direction and in the given component the Y direction is the best where no interference in clearing the tooling axis.
  • Create a point on the Surface of class A and Create a line that acts as a Tooling axis.
  • Then check with a draft analysis whether the part is clearing the tooling axis or not.
  • Here we are creating the Dog house we have to incorporate a separate tooling axis for the side core and while performing the draft analysis we have to use the above-created axis as the tooling axis.

Screenshots of the completed design in various orientations (Isometric, Front, Side, and Top View):

  • Isometric View:
  • Top View:
  • Front view:
  • Side view:
  • Side View:

Design of Dog House:

  • Thickness = 2.5mm.
  • C=0.4*2.5=1mm.
  • B can range between 3mm to 6mm, here I took it as 4mm.

Conclusion:

Hence all the submission requirements are successfully done and the CATPart file is attached below using Browse option.

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