IWB, NEC, and LAP processed the samples.
The punch sometimes had a crudely fractured end surface (which, of course, would be unique), sometimes an engraved design (the latter produced on the punch by drilling with abrasive corundum dust, which ate away at the surface, as in the lapping process perfected over millennia for sealstones).
As a highly efficient and cost-effective solution, the mechanical lapping process has been extensively applied in tool-making industry.
Substitution of the lapping process with double face grinding with planetary kinematics process enables significant reduction of process time tp and production costs per wafer.
The paper covers the mechanical lapping process, including the lapping machine, lapping mechanism and micro-mechanical strengths of the diamond crystal, optimization of lapping parameters, tool design criterions, ultimate sharpness as well as the evaluation of edge quality.
The both-sides lapping process in planetary motion type is proposed in this paper to lap and polish the cylindrical surface of bearing roller.
Although there are many studies about surface preparation in lapping process, the studies investigating this issue with theoretical or statistical modeling are very few in the literature.
A similar study also needs to be done for the lapping process, which is especially preferred for the preparation of the surfaces of sensitive materials.
Prior to lapping process, the effective diameter must be measured to find out the effective threaded profile along the screw shaft.
The lapping process is especially preferred to produce less surface damage of the silicon wafer in the production of high-efficiency solar cells.
