5. Terms of use

5.1 Cutting speeds Vc

Given the particularity of the broaching cycle: linear motion involving large masses successively accelerated and braked, speeds remained very low for a long time. The arrival of new generations of hydraulic and, above all, electromechanically-controlled machines has made it possible to increase these speeds. The following values represent a recommended average for high-speed steel towed spindles:

• steels $(400<R⩽700\text{MPa})\approx 10\text{ à }24\text{ [jusqu'à 40] }$...