Vibration Finishing, Centrifugal Barrel Finishing Mach […]
Vibration Finishing, Centrifugal Barrel Finishing Machine , and Turbo Grinding are the three technologies for gear finishing, improving performance and extending service life.
Isotropic finishing can have a huge impact on gear performance and service life so that some racing teams disassemble inventory gear sets and components and send them out for isotropic completion for performance and longevity benefits.
This includes gear manufacturing. Depending on the application, three quality finishing methods for producing gear surface finishes help to improve performance and extend service life.
Vibratory Finishing - Traditional and dominant, familiar vibrating bowls or barrels have small or large sizes and have been around for decades. In vibratory finishing, chemically assisted vibration finishing has a relatively new wrinkle that uses specially formulated compounds and non-abrasive media to create a conversion coating on gears and similar components. This makes it possible to develop horizontal surfaces with micro-finished surface properties. This technology is particularly suitable for automotive gear train systems and engine components such as camshafts and crankshafts and is widely used in racing teams for performance advantages.
Centrifugal barrel finishing - This high-energy method is a mechanical acceleration method used to create edge contours and isotropic miniature finishes on the gears. This method is used by various gear manufacturers and high-performance racing teams to improve the surface finish and durability of the gear set. It is also capable of producing low microinch surface finishes to improve the load-bearing quality of the mating surfaces and to produce beneficial compressive and cold hardening properties useful for high-stress components. A range of processes (similar to roughing, finishing and polishing) are often used to develop highly finished surfaces. The high centrifugal force and speed of the process achieve a high level of surface finish in short cycle time.
Here is an illustration of the isotropic surface treatment of gears, a technical term used to distinguish between random and non-directional surface finish patterns. This is in contrast to surfaces developed by all common processing and grinding methods, characterized by Gaussian peaks and valleys distributed parallel to each other, exhibiting a positively deflected surface with surface peaks and roughness on the front surface.
According to this definition, all quality processing methods can be said to be isotropic. However, the above process has been optimized to consistently produce a gear surface finish that improves overall performance and extends service life.
A feature that separates TAM from vibration or centrifugal gear finishing is that it is a dry process that does not use a fluid medium, rather than complete machining rather than complete finishing. The part is fixed to the spindle, similar to a horizontal machining center, and rotates at 500 to 2,000 rpm, completely wrapped in a cloud of abrasive media. When using dry-polished soft particles for secondary operations, a highly refined surface can be developed and finished with a finely polished material.