Week 8 - Challenge 2 - Base Bracket Design

AIM:

Create the Base Bracket Plastic component through the given Class-A surface and perform the Draft analysis on the model.

OBJECTIVE:

• Ensure Proper Tree Structure.
• Geometrical sets should have a proper name based on the sketches present inside of it.
• All the sketches should be created under the Geometrical set.
• Use the Close Surface feature to make a solid body from the surface.
• Use the publication option and publish the below
  • Tooling Axis
  • Class A, B, and C surface
• A detailed report should be done explaining the draft analysis and the tooling axis creation.
• An explanation should be given on the way of creating the tooling axis particularly the Bisecting method.

PROCEDURE:

Step-1: Connectivity check

• First we have to verify the part design using join surface option by simply selecting the class A surface .
• Another method is create a boundary layer of surface and disassemble it from the boundary layer from the surface.

Step-2: Create tooling axis (Bisecting method)

• Create a reference point by selecting the center circle of surface.
• Then create the axis for the surface to easily define the tooling axis.
• simply select the point and xyz plane.

• To get a dummy tooling axis in x direction.
• Use the intersection command, to get a wire diagram of surface in x direction.
• select the intersection command, select first element is plane of dummy axis say zx plane, select second element as class A surface, click ok.

• The draft angle of x direction is created to get the tooling axis of x-direction.
• Select the line command, select the perpendicular line's points and drag for desired distance. and same on other side too.
• Then use bisect line command to create a bisecting line between the draft angles..

• We will get the tooling axis in x-direction and also define its line color and thickness

• After the dummy axis definition, select the tooling axis of x to bisect using line command.
• The tooling axis for draft analysis is formed.
• Use publication command to publish the class A surface and tooling axis.

Step-3: Perform draft analysis

• Select the draft analysis command, ensure the material feature is used.
• Use quick analysis mode, display color scale option.
• Click on compass command on direction, drag and drop it in tooling axis.
• The draft should show green surface which is feasible draft angle.
• If red is shown not feassible draft angle and for blue negative draft angle.

• Use analyses under running point, to ensure same angle on symmetrical direction.

• Below is fully analyze mode to get the varied angle in class A surface.

Step-4: Create class B surface

• First extract the side draft surfaces from the class A surface.

• Then untrim the surface to extend the edges.

• Explorate the surfaces for 10mm length with boundary to be specified.

• Trim the excess edges by selecting the surfaces and other side option to switch the parts to be trim.

• Then offset the trimmed surafce from 2.5mm.

• Follow the same process for other side too.

Step-5: Create class C surface

• Do same procedure to creaate the class c surface from the top and bottom of the class A surface.
• And trim the side and top surfaces together.

• And apply the fillet option as 3+2.5 mm for all inner edges.

Step-6: Join the surfaces together

• First creaet a boundary of class C surface to from a guide curve.

• Then click the sweep option to select profile type line, draft doirection, guide curve as boundary layer and draft direction as tooling axis.

• Follow the same procedure to attain the top layer and 2 holes.
• Then join the side sweep and top sweep togther and 2 holes as well.

• Finally trim the joined surfaces and class C surface to get the final result.

RESULT:

• Tree structure

• Isometric View

• Front View

• Side View

• Top View