The New Gear Finishing Method Research for Highly Loaded Gears

Wieslaw Budzisz,Adam Marciniec

doi:10.3390/aerospace9030131

Abstract

Achieving roughness parameters on tooth flanks for highly loaded gears and creating their non-directional surface texture are key to obtaining the required gearbox lifetime, durability, and performance. Many finishing techniques are well-known and described in technical literature, including gear teeth final grinding, shaving, honing, and superfinishing to create the proper surface condition. Unfortunately, there is still a lack of a simple finishing method which can be applied to highly loaded gears in the manufacturing process in order to optimize cost, time, and waste. This work presents the effect of a non-chemical, abrasive, highly effective process to remove quite a large amount of material from gear teeth flanks. The researched technology is called Stream Finishing (SF). The surface condition was inspected to observe its properties before and after the proper SF process parameters definition. It is useful for transmissions groups to define the proper manufacturing process application for obtaining the required gearbox lifetime within optimized parts cost. For each application the process parameters definition shall be determined individually and tested.

Highlights

Research for Highly Loaded Gears.Throughout human history, gears have always played an extremely important role when it comes to transmitting power or movement at the proper speed
The workpieces in the researched subject were gears of 5 inch pitch diameter, made workpieces in thehigh researched subject were of hardness, 5 inch pitch diameter, from The carburizing steel with case hot hardness, highgears surface abrasion re- made from carburizing steel with high case hot hardness, high surface hardness, abrasion re sistance and excellent resistance for tempering
The isotropy of the surface, the shape of the surface irregularities, the values of the peaks and valleys of unevenness defined by additional roughness parameters and the shape of the involute in relation to waviness and primary profile

Summary

Introduction

Throughout human history, gears have always played an extremely important role when it comes to transmitting power or movement at the proper speed. These are very important constructions, developed over years, which are subject to high requirements depending on the type of gear and their uses. Gears are used to transmit power from the engine or motor to the working machine and provide the correct speed necessary for proper operating conditions. Gears may be designed as coaxial wheels when it is necessary to transmit the torque without changing the direction of the speed. Gears work in specific conditions with a lot of contaminations, dirty water, and dustiness by sand or soil [1–3]

Methods

Results

Conclusion