Veejay C Patell

Outsourcing Specialist (Plastics, Metals & Speciality Chemicals)

A Southern California based Outsourcing Specialist with more than 25 years of experience in the field of Plastics, Metals and Chemicals.

Metal Injection Molding is an industrially beneficial technology which allows engineers to create complex-shaped, often extremely small metal parts, which are complicated to manufactures with conventional lathe, CNC, EDM, and spark-machining methods regardless of ferrous metal alloys.

MIM can produce complex parts quickly, and at a lower cost than conventional techniques, such as machining or investment casting. MIM technology allows device engineers a previously unobtainable level of freedom in the design process, and the ability to produce high-density components.

Since the parts are made of metal or alloy material, purity and corrosion resistance are significantly better than with cast. Producing close to net-shape parts slashes costs when compared to machining, and Metal Injection technology often allows for the replacement of an assembly of parts with one discreet component.

MIM parts can serve as replacements of key high-tolerance plastic molded parts where strength and long-term dimensional stability is required.

Metal Injection Molding Comparision
Metal Injecting Molding Powder Pressing Investment Casting Machining
Complex Shape Simple 2D Shape Complex Shape Complex Shape
High Production High Production Low Production Very Low Production
Low Cost Low Cost High Cost Very High Cost
Thin Selection Fill thick Section Thick Section Thin Section
Better Surface Finish Good Surface Finish Rough Surface Very Good Finish
Density > 97% Density < 90% Density > 97% Desnity = 100%

Metal Injection Molding (MIM) Process Capabilities

  • Shapes: Thin-walled and Complex Shape
  • Wall Thickness: 0.7 mm to 6.00 mm (0.024" to 0.31")
  • Part Weight: Typically less than 3.5 oz. (100 grams)
  • Surface Finish - Ra: 25 to 35 Micro-inch
  • Tolerance: +/- 0.005"
  • Quantity: 10,000 to 100,000 pcs.

Metal Injection Molding Applications

  • Medical
  • Automotive Applications
  • Consumer Products
  • Industrial Components
  • Communications / Electrical Apllications

MIM parts can also be replacement of key application high tolerance plastic molded parts where strength and long-term dimensional stability is required.

Metal Commonly used for MIM parts

  • Low Alloy Steel
  • Carbon Steel
  • Stainless Steel
  • Cobalt Alloys
  • Copper Alloys
  • Nickel Alloys
  • Magnesium Alloys
  • Tungsten Alloys
  • Titanium Alloys