Week 9 - Attachment Feature Creation - Challenge 2

DOOR TRIM WITH ATTACHMENT FEATURES

AIM; The aim is to design a door trim and add attachment features to it.

OBJECTIVE

The objective of the project is to create a solid body of door trim from the given classA surface and finally add attachment features to it, after perform draft analysis with various values of min draft angle .

TOOLING AXIS CREATION

• Tooling axis is the axis through which the mold opens, it is one of the main procedure to perform before the design starts.
• In this project two tooling axis is needed one for the main part body and another one for the side core of the dog house.
• The main tooling axis is created by , at first a flat surface is extracted from the class A surface and then create a point on the extract.
• Then using that point as reference a tooling axis is created perpendicular to the surface using normal to surface method.
• The tooling axis for the side core is also created using the same poin created for the main axis, by taking that point as refernce a line is created in the z axis direction, and taken that line as the tooling axis for the side core, images are shown below.

DRAFT ANALYSIS

• The draft analysis is doing for a surface is to check whether it satisfies the industrial stadards or not , also if the draft angle is not proper then during the manufacturing of the components the chances of damages is high.
• According to the industrial standards the nominal draft angle is 3 deg , somecases a min of .5 and max of 7 deg are also used.
• In this project the draft angle for the main body is taken as 3 deg and for the attachment feature dog house the draft angle at outside is taken as 1.5 and for the inner surface is taken as .5 deg
• Totally 3 times in this project draft angle is measured.
• the first draft analysis is done on the class a surface to check whether it has any problem or not.
• Next analysis is done after giving thikness to the class C surface, in this case at some places the draft angle is below 3 deg , this is due to the given class A surface is not perfect.
• Then the next analysis is done after adding the attachment feature dog house to the main part body, in this case of dog house the draft angle for the outer surface is given as 1.5 deg ,so we do the analysis by giving 1.49deg ,this is because there may be some minimal deviations, and for inner surface draft angle is .5 deg so analysisi is done with .49 deg.

the image of the analysis are mentioned.