Allied Sinterings compares sintered gears with machined gears

March 15, 2024

March 15, 2024

Pinion gears produced by Powder Metallurgy (Courtesy Allied Sinterings)
Pinion gears produced by Powder Metallurgy (Courtesy Allied Sinterings)

Allied Sinterings, Inc., a Powder Metallurgy parts maker headquartered in Danbury, Connecticut, USA, has compared sintered gears to those produced via machining in a recent blog post. The company outlined the specific uses, benefits, and drawbacks of both types of production methods.

The applications for Powder Metallurgy sintered gears include automotive, power tools, medical instruments, domestic appliances, outdoor power equipment and marine equipment, amongst others.

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Allied states that the Powder Metallurgy production method ensures a robust end product with strength and durability, making them particularly advantageous in situations prioritising reliability and resilience. This contributes to their extensive use across various mechanical systems and devices.

Machined or precision gears, being a subtractive process, are produced from cutting a gear shape via hobbing, grinding, or milling processes. These three methods enable exact control over gear size and tooth profiles, resulting in high accuracy. CNC machining enables the creation of gears with intricate designs and tight tolerances, meeting the demands of industries requiring precise gear engagement.

In its blog post, Allied Sinterings outlines the advantages and disadvantages of sintered gears compared to machined gears, based on:

  • Production costs
  • Production time
  • Precision
  • Strength
  • Quality
  • Scrap waste
  • Design flexibility
  • Self-lubrication capabilities
  • Ability to be impregnated with a variety of materials
  • Volume repeatability and overall cost

Allied Sinterings’ full blog post is available here.

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March 15, 2024

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