Honing

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

Method of finishing a surface of a workpiece

Abstract: A method for finishing surfaces of workpieces includes a honing process with at least two method steps. In one of the method steps the surface, for example, the inner wall of a bore, is honed to a predetermined final dimension whereby a very fine structure with minimal depth of honing traces is generated so that a great portion of the surface functions as the supporting surface. In a further method step, which can be performed before or after the finishing-honing step, crossed grooves are provided in the surface by subjecting the surface to a stream of a medium, especially a laser, whereby the pattern of the grooves provides a lubricant reservoir for the future use of the workpiece. The treatment with a stream of a medium does not cause deformations at the edges of the grooves. This ensures an optimal distribution of the lubricant.

Particle swarm optimization for achieving the minimum profile error in honing process

Abstract: Gears are among the most important mechanical components of the modern industry. The topography of the gears’ tooth flank has an intricate and complex form and requires great finishing and quality. Commonly, traditional grinding processes are applied to finishing gear profile. However, the use of honing process has grown in recent years to provide the best finishing in industrial products. In this study, the honing process was improved applying a particle swarm optimization. Pinions of steering systems were used as work pieces to testify the optimization technique. The input parameters were the spindle speed, feed rate in X direction, feed rate in Z direction, oscillation time, and spark out time. The experimental measures were compared with simulation tests using the responses total profile deviation (f α ), total helix deviation (f β ), and total cumulative pitch deviation (f p ). The results showed that profile error was minimized, and the quality was improved based a set of strategies that were held simultaneously in the input parameters.

A new magnetorheological finishing process for ferromagnetic cylindrical honed surfaces

Abstract: In today’s industries, the internal surface finishing of cylindrical objects is highly demanded to improve their functional performance in various engineering applications. During the traditional honing operation, the finishing forces produced by abrasives on the workpiece surface are not easily controllable and also produce various surface defects. Therefore, to further improve the surface integrity of the traditionally cylindrical honed surface made of ferromagnetic or non-ferromagnetic materials, a new magnetorheological (MR) finishing process has been used with a controlled magnetic field. The experimentation is performed on the honed surface made of gray cast iron, which is generally used as a cylinder liner. The percentage change in surface roughness values, i.e., Ra, Rq and Rz, reduced by 77.44%, 70.16% and 72.16%, respectively, with better improvement in surface after 90 minutes of finishing. The experimental results demonstrated the effectiveness of present process for improving the funct...

Honing machine for cylinder blocks - has blocks mounted on side support struts so that no distortion occurs due to machining forces

Abstract: The honing machine table (13) is provided with four support struts (19) over which a bridge plate (18) is mounted. A workpiece (16) is mounted to this bridge plate from underneath. In the case of a cylinder block it is attached with the same force as a cylinder head would at be attached to the block. The cylinder block is fixed to the bridge plate with the use of special bolts (20) which incorporate a torque limiting arrangement in the bolt head.