GRECHISHNIKOV V. A., CHEMBARISOV N. And.,
SKHIRTLADZE A. G., STUPKO V. B., HISAMUTDINOV R. M., Matveev V. N., sukhinina L. A., LARIONOV D. N.
THE DESIGN OF CUTTING TOOL
Tutorial to perform
course project on discipline
«Cutting tool»
Source data:
1. Stretched workpiece: material – steel 40 hardness when stretching HB=217, state – after annealing, the hole for stretching obtained by countersinking; hole diameter before stretching (mm) - d0=32.5 mm; outer diameter of the slots D=38+0.045 mm; inner diameter of the slots d=33+0.17, the width of the slot cavities b=3.5 (+0.027), the number of slots z=16, chamfer size 0,5x45⁰, the parameter of surface roughness d = √RZ=20; d = √RA=2,5; b = √RZ=20; stretching length - LG=90 mm.
2. Machine: model 7A510; pulling force of the machine = 196000N; maximum stroke length of the rod St= 1600 mm; operating speed range 1.5-11.5 m / min, satisfactory condition.
3. Character of production of a detail-large-scale.
4. The length of the broach, permissible for the tool shop and correspondence Department, not more than 1500 mm.
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