Week 8 - Challenge 4 - Bumper

AIM:

Create the Bumper Plastic component through the given Class-A surface. Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model.

OBJECTIVE:

• To crate a tooling axis for the plastic component
• To create a Bumper of plastic component from given Class A surface.
• To perform the draft analysis over the plastic component.

IMPORTING THE MODEL

• Open the downloaded IGES file make it has class A surface by jioning all the surfaces

PROCEDURE:

• Doing the continuity check to ensure whether given class A surface is continuos or not.By using Boundry/jion method,It seems there is no dis-continuos boundry

• create point on Class A surface plane & create tooling axis on point & normal to surface (On surface method)

• Perform draft analysis on the given class A surface,Below pic shows the result of draft analysis,It cleares that it has 3^0 draft throughout the surface with respect to tooling axis as it is in green color

Creating Class B surface:

• In this component Directly offset class A surface to 3 mm

• Then repair the patches of class B surface

• To repair used the operations like multi surface,trim, jion etc with help of tools like line,spline obtain the class B surface

• Similarly did the above procedure for All the Patches

• The finle Class B

Creation of Class C:

• Extract all the boundry of class A surface Separately by observing the complexity ,Then sweep them
• Trim them together then we will get Class C surface

• Jion the class A & class C surface(by trimming)

• Then jion all the Class A,B & C Surfaces

• Then convert this closed surface to part body in the part workbench,we will get the required Bumper plastic component

• perform the Draft analysis on the Finle model.

From the above figure we can observe it is satisfying 3^0 nominal draft

but at some corner it's satisfying 1.6^0 (refer below pic) it also manufacturableby taking some considerations

In some area of C surface it is blue too due to it's perpendicular Relation b/w A&B & it is also in negative side

Hence plastic component can be created

• solid model with the proper color code of the draft angle in various orientations
  • green- 3^0
  • Red- 0^0
  • Blue- negative side & in this case in some area of C surface is also blue beacause it is having 90^0
• Isometric view

• Front view/Back view

• Side view

• Top view

CONCLUSION:

The Plastic Component is created & Draft analysis is Done