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Following is a report from The Manufacturers Alliance for Productivity and Innovation (MAPI). Founded in 1933, the alliance contributes to the competitiveness of U.S. manufacturing by providing economic research, professional development, and an independent, expert source of manufacturing information.
Don't miss these exhibitors co-located with Gear Expo.
Map and directory of Gear Expo 2017. Plan your visit with this handy guide.
News From Around the Gear Industry
Your guide to Gear Expo 2011, with highlighted map and alphabetical listings of exhibitors.
Your guide to the exhibitors of Gear Expo 2013.
Your guide to the booths at ASM's Heat Treat 2013 show.
Recent trends in gear cutting technology have left process engineers searching for direction about which combination of cutting tool material, coating, and process technology will afford the best quality at the lowest total cost. Applying the new technologies can have associated risks that may override the potential cost savings. The many interrelated variables to be considered and evaluated tend to cloud the issue and make hobbing process development more difficult.
The connection between transmission error, noise and vibration during operation has long been established. Calculation methods have been developed to describe the influence so that it is possible to evaluate the relative effect of applying a specific modification at the design stage. These calculations enable the designer to minimize the excitation from the gear pair engagement at a specific load. This paper explains the theory behind transmission error and the reasoning behind the method of applying the modifications through mapping surface profiles and determining load sharing.
In the August issue, we examined the lean tools that will and will not work in high-mix, low-volume manufacturing facilities. Now, we will examine how to implement the tools that will work in the job shop with an approach that expands the capabilities of value stream mapping.
This paper presents the geometric design of hypoid gears with involute gear teeth. An overview of face cutting techniques prevalent in hypoid gear fabrication is presented. Next, the specification of a planar involute rack is reviewed. This rack is used to define a variable diameter cutter based upon a system of cylindroidal coordinates; thus, a cursory presentation of cylindroidal coordinates is included. A mapping transforms the planar involute rack into a variable diameter cutter using the cylindroidal coordinates. Hypoid gears are based on the envelope of this cutter. A hypoid gear set is presented based on an automotive rear axle.
A single tooth bending (STB) test procedure has been developed to optimally map gear design parameters. Also, a test program on case-carburized, aerospace standard gears has been conceived and performed in order to appreciate the influence of various technological parameters on fatigue resistance and to draw the curve shape up to the gigacycle region.
Gear Expo floor map and alphabetical listing of exhibitors.
A road map is presented listing critical considerations and optimal use of materials and methods in the construction of large gears.
Map and listings to the ASM Heat Treating Society Conference and Exposition, which is co-located with this year's Gear Expo.
Map of the show and booth listings.
News Items About map
1 Comet's New Cloud-Based Gearbox Durability SimApp Will Provide Many Automated Processes (October 13, 2015)
Comet Solutions, Inc. recently announced a program in support of Gearbox design and manufacturing. The Comet Gearbox solution, consisting... Read News
2 Swiss Clamping Chuck Specialist Maprox Welcomes New CEO (September 19, 2016)
As a planned successor, Adrian Zwirner took over from the long-time owner Max Maurer as CEO of Maprox Gmbh effective September 1, 2016.Zw... Read News