Manufacturing method of high-strength end mill cutting edge and double-front-angle end mill

The invention discloses a manufacturing method of a high-strength end mill cutting edge and a double-front-angle end mill. To manufacture a cutting edge of an end mill (1) with a spiral groove, a main front angle (1.1) is firstly manufactured on the cutting edge of the end mill (1), an auxiliary front angle (1.2) is then manufactured on the main front angle (1.1), and the angle (alpha) of the main front angle (1.1) is greater than the angle (beta) of the auxiliary front angle (1.2). The cutting edge disclosed by the invention not only can effectively improve the end mill cutting edge strength and the processing fineness, but also has the advantages of simple processing technology, relatively low manufacturing cost and relatively long service life.