Broken common faults and solutions
2022-09-03 12:06:12
The broach is a traditional semi-finished and finished inner hole cutter with a machining accuracy of IT9 to IT7 and a surface roughness of R_o3.2 to 0.8. It is not only suitable for processing ordinary holes with a diameter of 10 to 85 mm. In recent years, due to the improvement of the hole drawing process, the maximum and minimum processing apertures have reached 200mm and 5mm respectively, the depth to diameter ratio can reach 15, the precision can be improved to IT6 level, and the surface roughness can reach R_o0.4~0.2. However, when the inner hole is pulled by a broach, the broaching surface is often generated due to the broach itself or improper use.
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