Week 9 - Project 1 - Door Trim Lower with Engineering Features

HEAT STAKES:

• Heat staking also known as thermoplastic staking is the process of joining two dissimilar materials together.
• In heat staking we use local heating and cooling to raise the temperature of plastic components and allow plastic reforming to be carried out.
• This reforming can be used in a wide variety of applications.

Heat staking Benefits:

1. Similar and dissimilar materials may be joined: metal to metal, plastic to plastic, metal to plastic
2. Accurate control operating within a small process window
3. Local heating resulting in no damage to surrounding materials
4. Processing of glass-filled materials
5. No mechanical vibration
6. Many heat-stake shapes possible through custom designed tools

2-WAY LOCATORS:

A 2-way locating pin restricts motion along 1 axis (or 2 degrees of Freedom), like a round pin in a slot. Likewise, a 4-way pin restricts 4 degrees of freedom along 2 axes. A round locating pin located concentrically in a hole is a common application of a 4-way pin, and helps to further secure the piece.

4-WAY LOCATORS:

4-way mean you prevent movement at 2 axes (+X, -X, +Y and -Y) on the plane. Generally, you have cylindrical pin on the fixture and circular hole at workpiece part.

Tooling Axis :

• The direction in which the mold called the tooling axisor core and cavity opens is Tooling axis
• Considering the ejection from the cavity of the mold after manufactering the interior trim must have the nominal 3 degree draft angle. Hence the tooling axis is crested by considering this factor
• The white clour line is the tooling axis of this surface

Class A Surafce :

• Class surface are the one which will be visible to the customer
• It's the exterior of the parts
• It has a optimal asthetic shape and high surface quality

Draft Analysis :

• This type of analysis is performed based on colour ranges identifying zones on the analysed element where the deviation from the draft direction at any point.
• The Green colour denotes the draft angle is in the standards (3 degree).
• The Blue colour denoted its is below (3 degree).
• The Red colour denotes the surface is not producable.

For class A :

For Solid Body:

Class B Surface :

• Class B is the inner side of the Class a surface which will not be seen by the customer
• where it will faced in the side of core
• where the ejection will make there contact
• It contains the engineering aspects of a model.

Class C Surface :

• Surface that joins class-A and class-B surfaces is class-C surface.
• Which will determine the thickness.
• Class C is often specified for interior surfaces not readily visible.

CONCLUSION:

This reports concludes the creation of HEAT STAKES & LOCATORS by following all Design Consideration for this model.