Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders. PM processes can avoid, or greatly reduce, the need to use metal removal processes, thereby drastically reducing yield losses in manufacture and often resulting in lower costs. Powder metallurgy is also used to make unique materials impossible…
Gears made by the powder metallurgy process provide a cost effective alternative to conventional steel or cast iron gears that are machine finished. The powder metallurgy (P/M) process yields net-shape, or near-net-shape parts, so that little or no machining is required to obtain a finished part in many cases. Thus the process offers dimensional tolerances and mechanical properties compatible…
Powder metallurgy (PM) is a unique, highly developed method of manufacturing ferrous and nonferrous parts. It is a versatile, cost-effective, and constantly expanding technology that is rapidly gaining worldwide popularity. The PM process begins with thorough blending of carefully weighed powdered metals or alloys to produce uniform distribution of the particles. Typical metal powders include bronze, brass, nickel, silver,…
Powder metal gears are found in aerospace, agricultural, automotive, building and construction, marine transportation, material handling, medical, military, petrochemical, pharmaceutical, power generation and robotics industries. The demand for application specific metal gears has led to the introduction of several types or styles such as anti-backlash, bevel, miter, chance, cluster, differential, helical, herringbone, hypoid, internal, planetary, spur and pinion gears….
Automotive transmission gears are responsible for transmitting torque from the engine to the wheels. In the process of transferring torque, gear teeth are subjected to cyclic loading. The cyclic loading in turn translates into cyclic tooth bending stresses along the root fillet and cyclic contact stresses on the active tooth surfaces.
The applications for powder metallurgy components fall into two main groups. First are components that are difficult to manufacture by any other method, such as those made from tungsten, molybdenum, or tungsten carbide. In addition, porous bearings, filters, and many types of hard and soft magnetic components are made exclusively using powder metallurgy. The second group consists of PM…
Powder metallurgy (PM) is a metal working process for forming precision metal components from metal powders. The metal powder is first pressed into product shape at room temperature. This is followed by heating (sintering) that causes the powder particles to fuse together without melting. The parts produced by PM have adequate physical and mechanical properties while completely meeting the…
Powdered metal manufacturing is an efficient, cost-effective method to produce high-strength parts for many industries. By eliminating or minimizing machining, the powdered metal process results in a more efficient use of materials, labor, energy, and capital compared to cast or wrought parts. Typical material utilization of conventional PM is approximately 97%. Powdered metal also offers unparalleled versatility to design…
The manufacturing of gears can present many challenges for conventional manufacturers. Gear geometries are inherently complex, rendering the machining process time-consuming – adding cost to the bottom line. It is in this realm where powder metallurgy excels. Through the use of precision rigid tooling, high tonnage compaction pressure, and sintering, gears may be manufactured with the powdered metal (PM)…
Powder metallurgy is an ideal technology for manufacturing gears because it creates the geometry of the teeth directly in the compacting operation. It also allows the manufacture of gears of different sizes, profiles and shapes (straight, double or helical), of steels with different alloying grades, finished with heat treatments (case hardening, carbonitriding, induction hardening, steam treatment) or with a…
The PM process is a highly-developed manufacturing process which produces ferrous and non ferrous products. The PM process uses most metallic and alloy materials and can create complex, near-net-shape parts. Whether your product is simple or a multi-step, tight-tolerance product, the PM process is capable of meeting your firm’s needs. The PM process is a metal forming process which…
Powder Metallurgy is a process used to make gears from metallic powders of bronze, iron, stainless steel, and alloy steels. These gears are used in electric motors, automobiles, pumps, power tools, and small appliances. The process usually consists of three steps. During the first step, appropriately fine powder of the selected workpiece material is sourced and may be blended…
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