Powdered & Sintered Metal Parts
Allied Sinterings Inc.’s skilled team of professionals have been manufacturing powdered and sintered metal products since 1959. Using high-quality powders and materials, our competency with complicated and intricate geometries is well-known and respected among customers in the telecom, automotive, medical, and industrial equipment industries.
Our Danbury plant houses three sintering furnaces and 42 high precision German-engineered Dorst Compacting Presses with capacities ranging from ½ ton to 50 tons. We also have a complete in-house tool room and a complete tumbling/finishing department, allowing for the drilling and tapping of the fine components and parts we manufacture.
Sintered Metal Parts & Materials
Small metal gears, cams, and sprockets are key components in high-tech medical devices, high-voltage circuit breakers, and more. Not only do these small parts require less energy and material to produce, but they also enable the production of smaller and lighter machinery. Typical products include:
- AGMA quality eight gears with fine pitches (120 diametral pitch)
- Cams
- Pinions
- Gearboxes
- Precision planetary drives
- Retainers
- Sprockets
We manufacture assemblies, sub-assemblies, tools, circuit breaker components, and medical devices from the following materials:
- Custom-blended powders
- Copper-infiltrated materials
- Copper steel
- Steel
- Brass powders
Allied Sinterings’ environmentally-controlled facilities help to ensure accurate measurements. We use computer-supported statistical process control, fully-calibrated process monitoring, and a Red Line gear checking double flank machine to check for defects and integrity. This allows us to manufacture precision parts with outside diameters up to 1.25 inches, heights up to 1 inch, and tolerances of ±0.001 inch.
Powder Metallurgy Process
Powdered metals are powdered metal alloys formed through compression and heat. Common metals are stainless steel, copper, brass, bronze, and iron, all of which can be mixed with other alloys to achieve the material’s desired properties. Powdered metals are highly versatile in terms of material combinations, mechanical properties, and customization. Powder metallurgy is also a highly repeatable process that creates strong, cost-effective components.
Powder metallurgy is also quicker than other manufacturing techniques. It consists of three main steps: selecting the powder composition, compaction, and sintering.
Choosing the metals that will go in your components will depend on your application’s performance requirements. Through the aid of lubricants, the selected materials are compacted into a die. The pressure gives the alloy “green strength,” which makes it strong enough to handle but still requires sintering. Sintering heats the components just below the melting point to bond the metal particles together and evaporate the lubricating material.
The sintered parts are then ready for additional finishing or heat treatments to improve its desired qualities. An added benefit of powder metallurgy is that it is eco-friendly, as it limits production waste to just 3% and creates harmless byproducts: nitrogen and hydrogen.
Powdered and Sintered Metal Parts from Allied Sinterings
Compared to traditional metalworking, powder metallurgy produces better part quality and uniformity, improved turnaround times, and reduced production costs. Powdered metal parts can be customized for various applications and made with tight tolerances, which are essential for noiseless gear applications.
With our precision compacting technologies and process monitoring systems, we can work with complex geometries and meet even the strictest criteria. For more information on sintered and powdered metals, contact us today.
