Research On Curved Surface Grinding Force Characteristics Of Arc Envelope And Curved Surface Grinding Cast Processing

With the increasing demand of low carbon,green Manufacturing,quantity production and low cost industrial production, modern injection molding technology is more and more adopted.Mould technology level has become the measure of a national manufacturing industrial level of important symbol. Among them the processing precision die forming surface directly determine the final quality products, especially the similar axisymmetric rotary surface grinding core often should not only meet the accuracy requirement of the shape also satisfy the surface roughness requirements. Traditional fine car, grinding and polishing methods can not meet its quality and quantity of processing requirements. Therefore, the current level of technology under foreign, breaking the existing technology, to ensure that core grinding precision molding and high efficiency in the engineering field of great practical significance.Now precision grinding technology can overcome traditional polishing processing surface of low efficiency and high cost shortcomings, the use of arc envelope grinding method, Can realize the precision machining axisymmetric rotary surface. However, the lack of precision grinding wheel dressing mechanism of uniform circular grinding wheel wear mechanisms and surface precision grinding process optimization, in-depth research, the actual production of a lot of problems still exist and can not give full play to the arc envelope grinding wheel superiority. According to the requirements of precision processing technology surface, mainly from circular grinding wheel envelope grinding principle, curve surface of arc envelope force characteristic,analysis grinding wheel dressing and grinding parameters influence to grinding force parameters. Meanwhile, with Chuckflap wheel in the curved surface cast processing were investigated.First, the analysis of the arc envelope grinding method for grinding the difference between the traditional, point by movement of the grinding wheel is the theoretical analysis reveals the point of the effective grinding wheel and grinding wheel profile width and the relationship between the radius and the surface curvature, while on the wheel radius, surface curvature and the workpiece grinding contact zone of the contact arc length and the cutting cross-sectional area of the relationship between exposure to the theoretical analysis. In turn axisymmetric surface curvature based on the analysis, for the rotary feed-related problems were studied in the calculation.Secondly, in the curved surface grinding cutting force research, studies its grinding force distribution and its characteristics, analyses of grinding force time domain waveform characteristics and trend of the frequency domain component. Combined with the surface grinding condition change in different curvature grinding force, analyzes the influence of feeding speed, grinding wheel depth and different trim parameters and curvature grinding force relationship. Combined with surface roughness of workpiece and shape accuracy grinding force, analyzes the different curvature place, grinding force and surface roughness and shape accuracy by monitoring the corresponding relation of grinding force, the methods to achieve on the surface roughness and shape accuracy observations.Finally, curved surface cast of exploration, contact properties was researched in the curved surface cast processing. With workpiece surface roughness and shape after polishing, analysis in different machining parameters processing quality, optimize the cast processing parameters, and grind technology researched.