Mechanistic Force Modeling for Broaching Process

Table 1

Specific cutting energy constants during shaping process.

Material	𝑎0	𝑎1	𝑏0	𝑏1	𝑐0	𝑐1
Mild steel	7.3	−0.46	7.2	−0.037	3.6	−0.71
Aluminium	7.4	−0.39	5.0	−0.68	2.1	−1.2
Cast iron	7.3	−0.29	5.9	−0.31	2.3	−1.0