TCI Precision Metals has announced the expansion of its grinding services to meet the needs of customers wanting more value-added materials processing. Customers who have traditionally sourced materials and shipped them to and from TCI Precision Metals for specific grinding requirements can now eliminate additional in-house processing, shorten materials lead times, and increase production efficiency. TCI can source materials mill-direct, precision cut oversize, then grind or mill two or six sides to close tolerance customer specifications.
For the transmissions of electric vehicles to develop the desired high torque under all driving conditions, a very large gear ratio is needed, which requires high speeds. And to ensure sufficient momentum at all speeds and enable the driver to accelerate without shifting gears, the electric drive must achieve up to 15,000 rpm, which is about three times that of a typical combustion engine. This puts a lot of strain on the rotor shaft. The manufacturers of rotor shafts are thus facing new challenges, such as the significantly lower shape and position tolerances and the need for greater machining precision.
C&B Machinery (C&B) announced the completion of their newly redesigned Clamp Bore Face Grinding Machines. After months of planning, redesigning, and building the machines, C&B is excited to announce the latest CBVR-2F-2S model Clamp Bore Grinders.
Bourn & Koch, Inc. of Rockford, IL, is pleased to report that Ross Wegryn-Jones has recently joined the company as our National Sales Manager. Ross will be responsible for the sales of gear manufacturing machines, precision grinding machines, and specialty machine tools for unique manufacturing applications. This includes Bourn & Koch horizontal gear hobbers; Fellows gear shapers; Blanchard rotary surface grinders, and Bourn & Koch’s new MT3 vertical grinding machine.
Manufacturing high-accuracy worm gears and screws alongside precision spur and helical gears has traditionally required the use of two quite different CNC grinding machines. Thanks to PTG Holroyd’s newly launched HG350-WG worm and gear grinding center, however, just one machine can now complete both tasks.
Machine Tool Builders Inc. has introduced a comprehensive new recontrol/retrofit package for larger-capacity profile grinding gear machines with outdated controls that add highly desirable performance at a fraction of the cost for new machinery.
For the research developed in this work, an existing simulation model of the generating gear grinding process based on a penetration calculation approach is used. Further, an extension of the model considering a realistic modeling of the grinding worm topography and the macro movements of the grinding worm during the process is presented. The result of the simulation is the microinteraction characteristics throughout the grinding of the gear flank. In the end, the information about microinteraction characteristics obtained will be used for the calculation of force and energy in generating gear grinding.
When grinding steel parts, the surface of the part can "burn" if too much heat is applied in a short time. Grinding burn refers to all those structural changes in edge zones of steel parts that are caused by grinding processes in steels due to the thermal energy introduced. Grinding burn can mainly occur in the form of tempering zones or new hardening zones.
A significant amount of work is being done to advance the technology of gears specifically for use in electric vehicles. No longer hidden by the noise of the internal combustion engine, the transmission has taken center stage as the noisiest component in most electric-driven cars.