Connecting Rod for Automobile Engine
Process: Powder Forged (P/F) Weight: 0.75 kg (1.65 lb) as-forged 0.66 kg (1.45 lb) finished Alloy: Copper-Steel Tensile Strength: 760 MPa (110,000 psi) Yield Strength: 550 MPa (80,000 psi) Hardness: 24 HRC Density: 7.84 g/cm³ (0.283...
Process: Powder Forged (P/F)
Weight: 0.75 kg (1.65 lb) as-forged
0.66 kg (1.45 lb) finished
Tensile Strength: 760 MPa (110,000 psi)
Yield Strength: 550 MPa (80,000 psi)
Hardness: 24 HRC
Density: 7.84 g/cm³ (0.283 lb./in³)
P/F produces rods with mechanical properties equivalent to those of conventional precision forging. For example, the mean endurance limit is 275 MPa (40,000 psi) with a standard deviation of less than 5%. This value is 153% of the stress level when the engine is operating at the maximum functional design loads. The high level of fatigue performance is achieved by forging to 99.6% of relative density, virtually eliminating microporosity, and by maintaining a high level of powder purity.
P/F also produces rods with closer tolerances than their precision forged counterparts. For example, dimensional variation on the outside profile of the rod is held to 0.12 mm (0.005 in) compared with 0.5 mm (0.020 in) for conventional precision-forged rods.
Powder Metallurgy Compents Can Be Machined When Needed
With careful tool design, good process capabilities, and CNC closed-loop control of compaction, most machining of PM components is potentially unnecessary. In many cases, the close tolerance of dies and close control of powder choices (control of part-size change due to material selection) means that what machining may be necessary due to application requirements can be quite manageable. That being said, there are machined features, such as cross holes, undercuts, and threads, that cannot be formed into place due to PM's nature as a net-shape axial-compaction process.
No Other Forming Process Offers More Material Choices for Structural Components than Powder Metallurgy
In many, but not all cases, the PM process transforms metal powder into components used for structural applications, for example, gears, bearings, connecting rods, and parts used in medical instruments. There are also times when metal powders are needed in powder form, as in the electronics industry, or for components that are not structural in nature, such as sound insulation. Powder metallurgy offers a world of material solutions to engineers and designers.
Registration Opens for Sintering Seminar
Registration has opened for one of the powder metallurgy (PM) industry's most popular programs, the Sintering Seminar. Only held every two years, this two-day seminar is meant for industry professionals either new to sintering or with intermediate...18 Jul 2016
Metal Injection Molding Conference Call for Presentations
An official call for presentations has been announced for MIM2017: International Conference on Injection Molding of Metals, Ceramics and Carbides, February 27–March 1, 2017. This global conference and tabletop exhibition will take place in Orlando, Flo...1 Jul 2016
Award-Winning Metal Powder Parts
The winners in the 2016 Powder Metallurgy (PM) Design Excellence Awards competition, sponsored by the Metal Powder Industries Federation (MPIF), amply demonstrate PM's capabilities in their own ways. They focus on PM's strong points to gain and extend ...21 Jun 2016
For more information send an inquiry directly to Metal Powder Industries Federation
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