Week 9 - Project - A pillar Design with Master Section

                                                              A pillar Design with Master Section

Master Section

Master Section are the guides for design requirements which decide the component packaging after technical surfaces.

Tooling Axis

The axis in which the mold or core and cavity is opens or the axis which the designer can modify or create a model by taking axis as a reference is called Tooling Axis.

Procedure to create tooling axis.

• Checking the master section, for to check which is the perfect place to create a tooling axis.
• By selecting the master section and extract the lines to draw a sketch.

• To Create the tooling axis, draw two lines on the extracted lines and extract the point to create a point.

• By Bisecting line 1 and line 2 with the point 1 we get the Tooling Axis and publish that tooling axis.

Draft analysis

Draft analysis is a method to check the draft angle of the model in various faces and to creates draft on the surface to reduce the friction in the Ejection process.

Procedure of the Draft analysis of Class A Surface

• In draft analysis we taking Class A Surface to draft.
• Check the view mode and change it to material mode.
• Select the draft analysis tool in the tool bar and select Campass in the Direction option of the draft analysis tool. Then move the campass on the tooling axis at draft direction and lock the draft direction.
• Using the running pointer we see the draft angle at different surfaces of the A Pillar.
• Then by using the color scale option we can change the Draft angle. The green color shows if the draft angle is 3 degree, red shows if the draft angle is between 0 to 3 and blue shows the negative draft angle.

 

Dog House

Dog house is designed to prevent the sink marks and to reduse the thickness of the mould.

Construction of Dog House

• To Create a dog house using master section and create a plane and point . Create a side core axis which is perpendicular to the tooling axis.
• By using positioned sketch draw the dog house and create outer walls by extrude the wall. Converting the walls to solid by using thicksurface command , increase the thickness to 2.5 mm as in the master section.

• Doghouse wall thickness at the intersection of the part wall ( C ) should be 40% or less than the main wall stock ( T ). The height of ( B ) should be between 3.0 – 6.0 mm according to the design rules.

C = 0.4 * T

C = 0.4 * 2.5

C = 1 mm

• I taken B value as 5 mm.

Draft analysis of Dog House

• In draft analysis of Dog House we taking Dog House Solid surface to draft.
• Select the draft analysis tool in the tool bar and select Campass in the Direction option of the draft analysis tool.
• Then move the campass on the tooling axis at draft direction and lock the draft direction.Useing the running pointer we see the draft angle of the Surface of the Dog house.
• Then by useing the color scale option we can change the Draft angle.The green color shows if the draft angle is more than 0.5 degree,red shows if the draft angle is between 0 to 0.5 and blue shows the negative draft angle.

Sketch Solveing Status

Tree Structure

3 D CAD