Honing

About: Honing is a research topic. Over the lifetime, 3530 publications have been published within this topic receiving 17491 citations.

Multi-responses optimization of finishing honing process for surface quality and production rate

Abstract: The finishing honing process is an effective machining to enhance surface properties. The objective of this work is to optimize the machining parameters, including the tangential speed (H), linear speed (L), and grit size (G) for minimizing the average roughness (Ra), maximum height roughness (Ry), and machining time (TM). The honing experiments were performed with the aids of an industrial machine and the Box–Behnken experimental matrix. The nonlinear relationships between machining parameters and honing responses were developed using response surface method models. Subsequently, two optimization techniques, including the desirability approach and non-dominated sorting genetic algorithm II (NSGA II), were used to solve the trade-off analysis among three technological responses and find the optimal factors. Finally, the machining time reductions were assessed in consideration of constrained roughness properties. The obtained results showed that surface roughness and machining time were strongly influenced by abrasive grit size, followed by the tangential speed and linear speed. The optimal values of the H, L, and G were 36.0 m/min, 9.5 m/min, and 220 FEPA, respectively. The reductions in the average roughness, maximum height roughness, and machining time are 53.13%, 8.93%, and 13.95%, respectively, as compared to common values used. Moreover, the genetic algorithm-based approach could be employed to produce reliable values in comparison with the desirability approach. The outcome is expected as a technical solution to enhance the surface properties and productivity of the finishing honing process.

Method for plating articles with particles in a metal matrix

Abstract: The surface of a workpiece which is to be plated is immersed in a plating solution of particles dispersed in a metal salt dissolved in an aqueous solution. The plating solution flows between the surface and an abrasive tool which rubs against the surface. An electric current is passed from the tool through the plating solution into the workpiece thereby causing metal ions to plate out as metal onto the surface of the workpiece. The particles within the plating solution become entrapped in the plated out matrix material. The pressure of the abrasive tool against the surface is enough to remove surface roughness but not enough to remove all the metal that is being plated out so that the coating builds up on the surface with the particles entrapped therein. The particle size, the pressure of the tool against the workpiece and the dispersal of the particles in the plating solution are several of the parameters which are controlled to achieve a uniform, high volume percent of particles within the plated matrix material. In a preferred embodiment the abrasive tool is a honing tool which rotates and reciprocates relative to the surface of the workpiece being plated.

Honing gear assembly

Abstract: A HONING GEAR ASSEMBLY COMPRISING A BACKING PLATE, A GEAR PLATE, AND A COVER PLATE, ALL BOLTED TOGETHER, AND MOUNTED ON A DRIVE SPINDLE HUB, WITH PIN AND BUSHING CONNECTIONS BETWEEN THE BACKING PLATE AND THE GEAR PLATE, WITH THE PINS OF SUCH CONNECTIONS BEING RECEIVED IN BLIND SOCKETS OF THE COVER PLATE, WITH THE HOLES OF THE GEAR PLATE BEING LINED WITH SHOCK ABSORBING BUSHINGS FOR ABSORBING SHOCKS TRANSMITTED FOR THE GEAR PLATE TO THE BACKING PLATE AND THUS TO THE DRIVE SPINDLE HUB.

The influence of manufacturing method on the running-in of gears:

Abstract: Striving for higher gear transmission efficiency by using a low-viscosity transmission lubricant affects the lubricant film thickness. To keep the K-ratio (the ratio between the film thickness and ...