The Research On Structural Design And Edge Orientation Method Of Grating Ruling Tool

Grating ruling is a process that extruding and polishing of metal coating on grating substrate and form stepped grooves after deformation, and that can’t produce chip. In addition, grating ruling process differ in chip forming process(as cutting, grinding and milling) on type of action and role in conditions under diamond tools and materials interaction. At chip forming process such as grinding or cutting, the diamond tool edge is perpendicular to direction of motion and the diamond tool interact with more hard material under high speed and high load condition. At grating ruling process, the diamond tool edge is parallel to direction of motion and the diamond tool interact with more soft material under low speed and low load condition. At present, more and more research in diamond tool design and wear mechanism of chip forming process is go on, but less research go on diamond tool design and wear mechanism of grating ruling process, to some extent, affected the development of grating ruling technology.This paper mostly focused on to more in-depth study of structural design and edge orientation method of diamond grating ruling tool through the case study of chisel-edge tool and double-conical arc tool. Firstly, using Deform finite element simulation software proceed optimal design of grating ruling tool parameters, preliminary realized the software simulation optimal design process of grating ruling tool parameters. Further, design tool body structure aim at precision of the chisel-edge tool and double-conical arc tool respectively, and provide an benchmark for developing high precision grating ruling tool. Secondly, using Deform finite element simulation software analyze wear shape of two type of grating ruling tool in grating ruling process. Through the study on model of Young’s modulus , Poisson’s ratio, periodic bond chain, cleavage speciality and micro strength of diamond, ascertain edge orientation of diamond grating ruling tool. Based on the micro strength theory of three representative crystal plane, establish cylindral model of micro strength that parallel with periodic bond chain(PBC) on diamond crystal, and provide the edge orientation method of grating ruling tool. Thirdly, carry out improvement on traditional technique of making grating ruling tool such as orientation technique of diamond, welding technique of diamond on tool body and lapping technique of diamond tool. Make double-conical arc tool lapping experimental equipment by alteration of planer, realized the double-conical arc tool lapping process. Fourthly, in order to meet the precision requirement of line transferring double-conical arc tool, designed high precision double-conical arc tool lapping machine, on the base of making double-conical arc tool lapping experimental equipment.