Week 8 - Challenge 3 - Coin Holder Design

AIM : To create the Coin Holder Design Plastic component through the given Class-A surface.

Objective

• To create a tooling direction.
• To perform draft analysis for the A-Surface and final close body.
• To design the base bracket plastic component by creating the B-Surface and C-Surface using the given Class-A surface.
• Take the Thickness of the component to be 2.5 mm.

Introduction :

The input of the product designer is in the form of the A-class surface. The job of the product designer is to create the B and C surfaces keeping all the aspects for the mold.

Class A is

1.Visible surface and aesthetic look

2.surface with textures

3.Surfaces provided by customer(OEM)

4.Don't have any features like(rib, snap, bosses, etc) on class A surface.

5.Class A surface is made from scanned data with different software like alias etc.

6.Surfaces which are having CURVATURE CONTINUITY IS CALLED class-A.

Class B surface:

1.invisible Surfaces.

2.Surface mostly don't have textures

3.Surface needs to be created according to the class-A surface.

4.having all features(Rib,boss,snap etc) in B-side surface only.

5.Surfaces which is having TANGENT CONTINUITY IS CALLED class-B

Class A Surface : Check the connectivity of the Class A Surface Ensure that there is no gap between the component, using join command. We can visually check it or by clicking boundary command. It has a boundaries outer. Therefore first check completed.

Below fig 1 shown the given A-class surface.

Fig 1.

Procedure :

Tooling Direction for Plastic Part : Tooling direction is main consideration for plastic part and mold parts because it defines movement of mold part and possibility of plastic part to come-out from mold part (Core and Cavity).

• In Molding machine arrangement is given to open the mold along a direction which is known as Tooling Direction.
• In other words. The mold is built from two separate halves (Core and Cavity) and tooling direction basically define the direction of mold pulls apart.
• Tooling direction is known as primary direction.

Preparation of Tooling Direction.

While creating the tooling direction in given class A surface. Chose the one suitable Base and Side wall and draw the line direction of axis. as shown the below fig 1.1.

Fig 1.1.

Below fig 1.2 shown the A-Surface Draft analysis. In radius and side walls are showing Negtive Draft need check with input.

Fig 1.2.

Creation of B-Surface: Is created with help of A-Surface by using the Off-set and Trim command. Below fig 1.3 shown B-Surface.

Fig 1.3.

Creation of C-Surface: Is created with help of A-Surface by using the Sweep and Boundary command. Below fig 1.4 shown C-Surface.

Fig 1.4

Below fig 1.5 shown the joing of A-surface and C-Surface with Draft analysis. In radius and side walls are showing Negtive Draft need check with input.

Fig 1.5.

Below fig 1.6 shown Final Close Body with Draft analysis. In radius and side walls are showing Negtive Draft need check with input.

Fig 1.6.

Below Fig 1.7 shown the Close Surface and some Publication.

Fig 1.7.

Below Fig 1.8 shown Dynamic Sectioning.

Fig 1.8.

Below fig (1.9 to 1.12) shown solid model with the proper color code of the draft angle in various orientations (Isometric, Front, Side, and Top View).

Isometric View.

Fig 1.9.

Front View.

Fig 1.10.

Side View.

Fig 1.11.

Top View.

Fig 1.12.

Conclusion : The COIN HOLDER is created with consedering all Design Methodology. In radius and side walls are showing Negtive Draft need check with input.