Experimental Analysis of Process Parameter Effects on Vibrations in the High-Speed Grinding of a Camshaft

Abstract

The capacity to minimize vibrations in grinding by the selection of appropriate process parameters is a significant benefit in the process optimization of cam grinding. This paper presents survey methods to characterize and quantify the vibrations and waviness in a camshaft grinding application. First, a modal analysis was conducted to study the dynamic characteristic of a camshaft grinding machine. Then, developed methods were applied to study the influences of various parameters on vibrations in the high-speed grinding of a camshaft. Furthermore, the influence of each grinding process condition on surface waviness in high-speed camshaft grinding was studied. The results show that the vibrations and the surface waviness change with the increase of grinding depth, and an appropriate grinding wheel speed combined with a workpiece speed has, for most grinding conditions, a reducing effect on vibration magnitudes and waviness. Finally, the specific indications about the optimal grinding process parameters in terms of dynamic characteristics of the grinding machine were given, and the speed ratio=1.2 is a novel choice.

Investigation of influence of grinding wheel and cutting parameters on surface roughness and surface hardening when relieving grinding the gear milling teeth surface based on the Archimedes' spiral

“…Grinding processes that are the popular machining processes are applied to finish the mechanical products with high accuracy of dimension and high machined surface quality. In grinding processes, surface roughness, surface hardness, residual stress on the surface layer, and so on are often selected as the criteria to evaluate the machining quality and efficiency [1,2].…”

A multi-criteria decision-making in relieving grinding process of surface of gear milling tooth based on the archimedean spiral using taguchi-ahp-topsis method

“…In manufacturing mechanical products with high requirement of accuracy and machined surface quality, the grinding that is the machining process has been often applied as the sui table machining processes for these cases. Many parameters in grinding processes have been selected to evaluate the machining quality and efficiency such as surface roughness, surface hardness, residual stress on the surface layer, etc [1,2]. One of the most important criteria that have been selected to evaluate the quality of the machined surface is the surface roughness because this criterion has the most influence on the working ability and the life of the mechanical products.…”

A research on application of the measurement of alternatives and ranking according to compromise solution method for multi-criteria decision making in the grinding process

“…It can be said that because the forced vibration depends on the precision of the machine, the balance level of grinding wheels, while the self vibration depends heavily on the technological parameters in the grinding process. Thus, it is clear that it is much easier to change the value of technological parameters than to change the precision of grinding machines or grinding wheels [11,13,14]. Therefore, to reduce the vibrations of grinding wheel shafts, it should first find solutions to reduce the forced vibration by determining the reasonable value of parameters in the machining process.…”