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With the aim of reducing the operating noise and vibration of planetary gear sets used in automatic transmissions, a meshing phase difference was applied to the planet gears that mesh with the sun and ring gears.
This issue of Gear Technology marks another milestone in the life of our magazine. After publishing 51 issues - nearly 200 articles containing close to 2,500 pages - we're ready to try something new.
This report presents some interim results from an ongoing project being performed by INFAC, the Instrumented Factory for Gears. The purposes of this initial phase of the project were to demonstrate the feasibility of robotic automated deburring of aerospace gears, and to develop a research agenda for future work in that area.
Using the DANTE software, a finite element simulation was developed and executed to study the response of a carburized 5120 steel helical gear to quenching in molten salt. The computer simulation included heat-up, carburization, transfer and immersion in a molten salt bath, quenching, and air cooling. The results of the simulation included carbon distribution of phases, dimensional change, hardness, and residual stress throughout the process. The predicted results were compared against measured results for hardness, dimensions and residual stress. The excellent agreement between predictions and measured values for this carburized 5120 steel gear provides a basis for assessing the various process parameters and their respective importance in the characteristics of not only these heat-treated parts, but of other compositions and shapes.
LMS International helped a Fiat subsidiary develop a new, dynamic vibro-acoustic prediction method to reduce design time and engineering costs through accurate prediction of gear noise in the design phase.
Forty years ago, the plastics industry was practically in its embryonic phase...
AGMA and members of the Metal Powder Industries Federation (MPIF) are three years into a joint project to develop specifications and an information sheet on rating powder metal gears. According to committee vice chairman Glen A. Moore of Burgess-Norton Mfg. Co., the first phase of the project, the publication of AGMA Standard "6009-AXX, Specifications for Powder Metallurgy Gears," should be completed in late 1996 or early 1997.
News Items About phase
1 Ikona Gear Moves Into Commercial Phase Across Multiple Product Lines (March 29, 2006)
Ikona Gear International is moving numerous projects from the design and prototype stages into commercialization. Laith Nosh, presiden... Read News
2 Phase II Ultrasonic Hardness Tester Provides Portable Measurement of Both Hard and Soft Metals (August 2, 2016)
This handheld device allows the measure of hardness on small, large, flat, round, thin or thick workpieces. This rugged metal body unit i... Read News