Week 9 - Attachment Feature Creation (Ribs & Screw Boss) - Challenge 1

Report for the above challenge is as follows :-

Tooling axis creation.

• At first tooling axis is to defined to perform draft analsys on given A surface.
• A flat surface is identified and extracted from the given A-surface.
• A point is marked on the extracted surface and a line is created normal to the surface.
• Since the line created is normal to the surface, bisecting line is not requred here.
• With the help of the line draft analsys is performed on the given A-surface.

Draft analsys shows green colour on the given A-surface and red on the side surface which indicates the few surface can be drafted for upto 3 degees and red coloure shows the draft is less than 3 degrees.

After Draft analsys, B surface creation is proceeded :-

• At first given A-surface is offseted to 2.5mm.
• Than the patches are identified and extracted which were left after offset.
• with the help of multisection tool the patch is fixed and joined with the offset body which forms the B-surface.

Creation of C surface is done after B surface.

• Boundry is taken on the given A-surface.
• On the marked boundry with the help of sweep command surface sweep is created with reference to surface and markded angle is 90 degree, length of the sweep is kept 5mm.
• After A and C joined together, B surface is extrapolated so that it can be trimed with the joined (A and C) surface.
• After triming the obtained body is than made closed body with the help of close surface command in surface workbench.

Creation of Ribs and screw boss are as follows -

• First a point is marked on the extracted face of the closed body.
• Now in part workbench sketch is drawn for rib of given dimension, draft = 0.5 degree, thickness = 1mm(0.4*t), fillet = 0.25, height = <5*t, thickness = 1mm (0.4*t)
• Separate body is taken and the sketch is padded to the required dimension and than draft of 0.5 degree is given to the ribs and the edges of the ribs are filleted to 0.25mm.
• For screw boss two circles sketch is drawn on the same point. Thickness = 0.6*t, Dia of the circles are 5.2mm and and 8.2mm, draft = 0.5 degree, fillet = 0.25mm.
• The drawn screw boss is padded to required height, given 0.5 degree draft and the edges filleted to 0.25mm and than it is added to the main closed body.

Draft analsys is performed on the obtained closed body which shows green colour that indicates the obtained surafce can be drafted upto 3 degress and blue colour indicates that the draft is less than 3 degress.

Thankyou