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Technologies for the elimination of defects caused by grinding thin parts

Technologies for the elimination of defects caused by grinding thin parts

IK4-IDEKO presents a project that seeks solutions to tackle problems during the grinding of slender shafts

When a grinding process has to be devised for a new part, certain quality specifications together with production outputs required by the customer have to be met; in those cases it is of vital importance to establish the optimal conditions as fast and straightforward as possible. Therefore, grinding of slender parts requires a more in-depth study and the application of different technologies that can facilitate find a solution to the difficulties in these cases.

Grinding is a process in the last stages of the manufacturing of high-precision parts where demanding dimensional and surface qualities are required. The process is based on removing excess material left on the parts in previous processes with a rotating grinding wheel. The elimination of the excess material occurs in the contact area between the wheel and the workpiece, generating mainly normal forces that deform (bend) the workpiece to a greater or lesser extent depending on the rigidity of the system. In the case of thin parts, whose length/diameter ratios are high, the rigidity of the system is far less and in order to obtain a quality part, the forces exerted on the workpiece must be limited affecting the grinding conditions and, consequently, productivity.

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June 2019

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