Design of round broaches Option 6

Design of round broaches Option 6

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»

Additional information:

Source data.
1.Stretched workpiece:
material cast iron KCH;
Brinell hardness 163 n V;
the hole for stretching is treated with a drill;
hole diameter before stretching to=34.2+0.25 (N 12)mm;
hole diameter after treatment dmin=35+0.05;
the parameter of surface roughness Ra3,2;
the greatest length of stretching Lg=90-0, 87
2.Horizontal broaching machine,
model 7a520;
pulling force of the machine Q=200 kN;
maximum stroke length L max=1600 mm;
operating speed range 1.5-11 m / min;
the plant status is satisfactory;
the broach is fixed in the automatic cartridge.
3.Character production-mass.
4.The length of the broach, permissible for the tool shop and correspondence Department, not more than 1500 mm.