Design of square broaches Option 39

Design of square broaches Option 39

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-steel 30x hardness when stretching H V=302;
condition - after annealing;
the hole for stretching is prepared by a drill;
diameter of the hole before stretching (mm) - d0=35mm;
smallest internal diameter of spline hole Dmin=41.8 mm;
inner diameter of slots dmin=37,
smallest slot width bmin=6;
the number of slots z=10,
the roughness parameter of the surface VN = 6,3; BH = 3,2; in = 3,2;
length of stretching-Lg= 55 mm.
Machine: model 7B510; pulling force of the machine at = 100 kN;
maximum rod stroke length LST= 1600 mm;
operating speed range 1.5-11.5 m / min, condition satisfactory.
Character of production of a detail-large-scale.
The length of the broach, permissible for the tool shop and correspondence Department, not more than 1500 mm.