Challenge

Week 8 - Challenge 3 - Coin Holder Design

AIM:- To Create the Coin Holder Plastic component through the given Class-A surface. To begin with, the tooling axis for the given Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model.

Take the Thickness of the component to be 2.5 mm

OBJECTIVE:-

  • Screenshots of the Draft analysis report for both the given Class-A surface and the final plastic component
  • Screenshots of the solid model with the proper color code of the draft angle in various orientations (Isometric, Front, Side, and Top View).

GIVEN CLASS A SURFACE:-

STEP 1: Check the connectivity of the Class A SurfaceEnsure that there is no gap between the component, using join command.We can visually check it or by clicking boundary command.

STEP 2: Find the tooling axis of the component. The tooling axis is nothing but the mould opens or cavity opens.
Check visaully which is the best possible tooling axis.

TOOLING AXIS:-

The direction in which the mould open and closes is called the tooling axis direction.While creating a tooling axis please ensure to give the tooling axis on a flat length surface or the surface which have a hole on it.
Create a point on the middle of the base surface by using point on the surface command then create a intersection for the surface and extract the reference lines which will be helpful for creating the Tooling axis.


Draft analysis:-

Draft allows for the component to release from the mould, most parts or applications require a minimum of 0.5 to 1 degree draft angle and 3 dgree draft angle is widely used as per the norm.
Change the material mode to customize mode before moving to the draft analysis.
Insert –analysis-feature draft analysis
Defining the draft direction Select draft analysis from the tool bar and click on the compass symbol and pull the compass from the right side top corner of the workbench and place it on the component where want to do the draft analysis. ‘W’ of the compass and tooling axis should be aligned on the same line.
Once the compass is aligned with the tooling axis click on the lock symbol and drag on the surface we will get a wrong mark then select that point a table will appear it shows the draft value on the table we can adjust the draft value and analysis it for all the edges and surfaces.
By clicking the on the surface and using the flipping tool we can assign the Flipping direction, the color of the surface change as per the flipping direction .
Analysis under running point and move the mouse on the surface and it will show the details of the surface deg direct at each and every point of the surface.

CREATING B SURFACE :-

In the case of Class A the surface below is called core and the surface above is called cavity.
Class A is an aesthetics surface and class B is an engineering surface.
B surface should be inside the class A surface.
B surface can be divided into four surfaces the side walls, top walls, outer flange, base and Rib surface and later trim them altogether.Now all the Five geometries are trimmed together to get the B surface.
Fillet is applied to the required surfaces by measuring the fillet value from the class A surface.

SIDE WALLS:-

TOP WALLS:-

OUTER FLANGE:-

BASE:-

RIB:-

FINIAL B SUFACE :-

CREATING C SUFACE:-

In order to get the C surface first we have to create a boundary lines of class A surface,Create a sweep with reference to the curve and the reference surface with a 90 degree angle and give the inside direction Check for the continuity of the surfaces if there is any gap go for extrapolated and trim all together now we will get the class C surface.

ISOMETRIC VIEW:-

FRONT VIEW:-

SIDE VIEW:-

TOP VIEW:-

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