Design of round broaches Option 11

Design of round broaches Option 11

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.
The routed workpiece: material – steel 40X;
tensile hardness HB 207,
the minimum diameter of the hole before stretching-do=38.4 mm;
the minimum diameter of the hole after stretching-D=40 mm;
the hole for stretching is prepared by a drill;
the roughness parameter of the surface ;
stretching length-l=35 mm.
The nature of the walls: TL
Machine tool: broaching, model 7Б520;
pulling force of the machine Q=200 kN;
maximum rod stroke length mm;
the broach is fixed in an automatic replaceable cartridge.
Cartridge type quick-release
Character of production-large-scale.
The length of the broach, permissible for the tool shop and correspondence Department, not more than 1500 mm.