Week 9 - Project - A pillar Design with Master Section

A PILLAR

Aim: To Create the A PILLAR component through the given Class-A surface.

Objectives:

• Creation of Tooling axis with appropriate draft angle.

• Creation of other surfaces (eg, B and C surfaces) for creating a solid component.

• Perform Draft analysis on Class A surface and Solid model hence created.

• Engineering Features like DOG HOUSE with Mastersection.

Procedure :

Creating the tooling axis

The tooling direction is used to find the direction in which the part is ejected out of the mold or it is the direction in which the core and cavity are moved and the part is ejected.

The draft on the part should be positive in order to manufacture the part easily. The draft angle should be positive with respect to the tooling direction.

• The tooling axis created by following steps

1) It is to select class A surface base to extract.

2) creat point on extract.

3) select point to direction command in line definition on it point.1 and y direction.

Draft analysis :

• To perform the draft analysis the view parameters are first set to material mode.
• Then go to Insert >>analysis>>feature draft analysis.
• First, select the axis system and drag the axis system to align and coincide with the tooling axis and lock the orientation. This axis system defines the draft direction according to the tooling axis.
• Switch on the color scale and set the minimum draft value. Here it is set to 3 degrees and it will be displayed in green color. Any draft angle below 0 degrees will be shown in red color.
• Now select the running point tool to measure the draft angle at the various locations and then if all surface passes the draft analysis switch on the light effect that will show the component in green color if the component has the required draft angle.
• The final draft analysis shows the green color surface having the draft angle above 2.9 degrees and red or cyan color shows the draft angle below 0 degrees.

GIVEN CLASS A SURFACE

CLASS B SURFACE

• In this offset class A in 2.5mm.
• In this they are 1 gaps.

• We need to creat sweep here with reference surface.
• Then we need to extrapol our class B surface is done .

CLASS C

• C class is where the thickness of the component can be seen.

• For the C surfaces, the boundary is extracted from the A surface and then swept with a reference surface in 90 degrees and with draft direction with 3 degree .

FINAL JOINT

• C is joined with the A surface.
• Lastly,the AC is joined with the B surface to get the final A PILLAR component. This obtained surface is then thickened in part design.

• Results :

  Final A PILLAR plastic component :

Draft analysis

Engineering Features

creation of DOG HOUSES

"C" is where the doghouse contacts the backside of the surface

• 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

DOG HOUSES For reference Drawing.

A PILLAR WITH MASTERSECTION

• With the help of matersection we need to creat Dog house.

DOG HOUSES

• WE TO CREAT SKETCH WITH AND CREAT A Axis system .
• With mastersection we creat the 3D projection and isolate them.
• creat the sketch with mastersection.

• WE NEED TO CREAT PAD > SHELL > DRAFT > EDGE FILLETS
• DRAFT - 0.5DEG , INLET THICKNESS-0.25MM AND EDGE FILLETS IS 3MM OUTER SURFACE.

Draft analysis

• DRAFT IS 0.45 AND GREEN COLOUR IS FORMED.

creation of SIDE CORE

• WE NEED TO TAKE THE Z AXIS TO POINT AND SIDE CORE IS CREATED.
• WE NEED TO CHANDE TO SURFACE WORKBENCH.
• WE NEED TO EXTRACT > OFFSET FOR 4MM > MULTI-EXTRACT > EXTRAPOL > OFFSET FOR 1MM OUTER SIDE > FINAL TRIM > DRAFT > EDGE FILLETS
• DRAFT - 0.5DEG ,EDGE FILLETS IS 0.25MM.

Draft analysis

• DRAFT IS 0.45 AND GREEN COLOUR IS FORMED.

creation of PUSH PIN CLIP

• WE TO CREAT SKETCH WITH A Axis system.
• WE NEED TO CHANDE TO PART WORKBENCH.
• WE NEED TO POCKET TO 8MM UPPER SIDE > EDGE FILLETS.
• EDGE FILLETS IS 0.25MM.

FINAL A PILLAR component

• AS WE CREATED FINAL DOG HOUSES SO, WE CAN UNI-TRIM THE DOG HOUSE AND A PILLAR.

Draft analysis

tree structure