Week 9 - Project 1 - Door Applique Design with Engineering Features
DOOR APPLIQUE DESIGN WITH ENGINEERING FEATURES
Heat staking:
Heat staking is an assembly method that uses the controlled melting and reforming of a plastic stud or boss to capture or lock another plastic or metal component of an assembly in place.The plastic stud protrudes through a hole in the component to be locked in a place.The heated thermal tip contacts the top of the stud,which melts and fills the volume of the tip cavity to produce ,a head locating the component in place
3-2-1 Principle:
The 3-2-1 principle of location (six point location principle) is used to constrain the movement of workpiece along the three axes XX, YY, and ZZ. This is achieved by providing six locating points, 3 pins in base plate, 2 pins in vertical plane and 1 pin in a plane which is perpendicular to first two planes.
Tooling axis:
It is the axis in which the core meets the cavity.
Creating a point on the applique surface and then draw a line using point and direction option select the direction as Y-axis.
Draft Analysis of class A surface:
B surface creation:
Extract the Class A surface and then offset it to 2.5 mm this offseted and then extrapolate it and this surface is used as class B surface
C surface creation:
C surface is created by taking boundary of calss A surface and then sweeping this boundary using the option sweep with draft direction.3 deg is taken as draft angle.
Final body creation:
Trim class c surface from extrude surface and class B surface and then use close surface to create the solid part.
4 Way Locator and 2 Way locator:
Creating 4 way locator and 2 way locator and then draft it to 0.5 deg and then necessary fillet and chamfer are created and then it is union trimed with door applique.It is translated using point to point translate
Heat Stakes:
Extract class A surface boundary and then using parallel curve command offset the extracted curves to 15 mm and create points at equal distance of 50mm. create the heat stakes using pad command and then draft it to 0.5 deg and then union trim with door applique and use translate command to create multiple copies of the heat stakes.
Clearance cutout:
Using same points as used for locators and heat stakes draw sketch of circle and then pad it make sure it has 0.1 clearance for locators and 0.5 clearance of fof heatstaking.Remove the pad from the clearance support.
Draft Analysis:
Draft angle 3 ,deg clears the Door applique
Draft angle 0.45 clears the locators and heat staking
Draft angle of 3 deg clear the counter part
Isometric view:
Front View:
Side view:
Top view:
