Challenge

Week 8 - Challenge 6 - Core & Cavity Design

IIrfan Moinuddin Syed14 Sept 2022

TOOLING AXIS CREATION AND DRAFT ANALYSIS FOR THE GIVEN CLASS A SURFACE (SWITCH BEZEL)

OBJECTIVE

This project is about to create the tooling axis for the class a surface and to perform draft analysis on Switch Bezel.

INTRODUCTION

The Draft allows the part to easily eject from the mold. The draft angle is to reduce friction between the core, cavity and part and it also avoid the damages. The minimum draft angle is 0.5 degree and the most common draft angle used in the plastic design is 3 degrees.

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.

The Tooling Direction is basically the direction that the mold pulls apart. 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 Tooling Direction.

GIVEN CLASS – A SURFACE (SWITCH BEZEL)

PROCEDURE FOR TOOLING AXIS CREATION

The connectivity between the surfaces to be checked, by using the join option see how the surface is connected and ensure that there are no surface gaps in between the component.
The other method to check connectivity is using the boundary option. By Extracting and disassemble the boundary of the class – A surface we can check visually gaps between the surface.
Create a point on surface with using point defination and create a axis with using axis system tool
Create a 2d sketch on yz direction on new axis
Insert a 3d element and with that create a two lines
with the help of 2 line create a tooling axis.
Create a 2d sketch 2 on xz direction on new axis
Insert a 3d element and with that create lines
creare a line on axis point with 6 degree angle.
create a internation sketch using insersect tool using two sketchs.

By using the two sketch create a tooling axis With the bisecting line option selecting the two line the TOOLING CLEARING created

PUBLICATIONS

TOOLS - PUBLICATION

Publication is done because It can be easily visible and can be easily accesable while performing further operations

Select the fan cover (Class A Surface) and the tooling axis and select publish

DRAFT ANALYSIS

For plastic parts the Nominal draft angle is 3deg is allowed for the subassemblies like ribs and slots
INSERT - ANALYSIS - FEATURE DRAFT ANALYSIS
First the compass is moved to the part (the compass sholud be placed on the tooling axis) which used to define the new current draft direction, then lock the draft direction using the lock icon
The colour chart indicates the various condition of the draft angle . the green colour indicates that the part passes and the and can be used for the further operations
By using the analysis under the running point icon we can check draft angle at the various surfaces of the component
There are two modes in the Draft analysis quick mode and fully detailed mode

The compass is placed on the tooling axis and locked.