MIM

What Is MIM?
   Process Overview
When to Use MIM
   General Guidelines
   Technology Comparisons
   Materials Range
   Materials List
Design Guidelines
   Designing for Manufacturability
   Uniform Wall Thickness
   Thickness Transition
   Coring Holes
   Draft
   Ribs and Webs
   Fillets and Radii
   Threads
   Holes and Slots
   Undercuts
   Gating
   Parting Lines
   Decorative Features
   Sintering Support
Secondary Operations

Ribs and Webs

Ribs and webs are useful for reinforcing relatively thin walls and avoiding thick sections. In addition to increasing the strength and rigidity of a thin wall, they improve material flow and limit distortion. Rib thickness should not exceed that of the adjoining wall. Where structural requirements indicate thicker ribs, multiple ribs should be used instead. Figure 5a shows recommended proportions for ribs. Figure 5b shows how ribs may be used as a means to provide coring for mass reduction while maintaining the functional strength of the component.