Week 9 - Attachment Feature Creation - Challenge 1

RIB DESIGN:

• Ribs are thin protrusions that extend perpendicular from a wall or plane to provide added stiffness and strength without increasing overall thickness of component.

RIB CREATION RULES:

• The following design rules should need consider while rib creation
• Draft angle ≥ 0.5°
• Thickness at tip ≥ 0.75mm
• Fillet radius (max) = 0.25mm
• Height or Depth ≤ 5*t [t=component wall thickness]
• Rib thickness W = 0.4*t
• Space b/w two ribs,
  • Height/ width < 3
  • Y/X < 3
• Root wall thickness is not more than the 30% of the wall thickness.

TOOLING AXIS CREATION:

• check the possible direction of tooling axis.
• Here the side walls are perpenticular to the base surface, so creating bisecting method to create tooling axis insteadwe can create normal line to the base surface.

DRAFT ANALYSIS:

• Do draft analysis for the given solid component

RIB CREATION

• Make sketch for create rib. create a line with dimentions and the sketch should be in fully constrained.
• Extrude the line along with tooling axis, with dimention of 5* wall thickness = 12.5mm

• for ease to assembly make 1mm extrude towards part inside.

• Thicken the extruded surface with thickness of 0.4*wall thickness = 1mm

• Make draft for this surface for all sides with minimum drfat angle 0.5degree.

• Assemble the rib with Body and make fillets.

RIB ROOT THICKNESS:

• To check rib root thickness, we have to perform intersection of body with rib.

• create circle between wall and rib and measure dimention of the circle.
• The diameter of the circle is rib root thickness.
• Ensure that the rib root thickness does not exit the 30% of wall thickness
• For thgis component the Rib root thickness = 2.701mm.
• It will not create sink while material flows.

Remaining Actual measurements:

Rib tip thickness:

RIB THICKNESS

DRAFT ANGLE:

RIB HIEGHT:

END