The invention discloses a
solid carbide drill chip breaker groove for a steel part and a design method of the
solid carbide drill chip breaker groove for the steel part. The structure of the
solid carbide drill chip breaker groove for the steel part is as follows: one end of a chip rolling groove is a negative chamfered edge, the other end thereof is a chip breaker table, and the chip rolling groove is arranged at a
joint point of the chip breaker table R. The design method of the solid carbide drill chip breaker groove for the steel part comprises the following steps of: 1, selecting a five-axis
grinding centric device; 2, selecting
a diamond grinding wheel in a type of 75 degrees as a
grinding wheel; and 3, carrying out the specific operation as follows: 1) adopting an imported five-axis-linked grinding center, and setting a
cutting blade-blade
angle of inclination in a
machining center program; 2) setting the thickness of a drill core according to 26% of
diameter of the drill of the steel part; and 3) enabling a solid carbide drill of phi(10) to have the following specific parameters of chip rolling and chip breaking requirements: a front angle is 10 degrees, the thickness of the core is 2.5 mm, a tilt angle is 8 degrees and an angle of
declination of the
grinding wheel is 3 degrees. The solid carbide drill chip breaker groove for the steel part has the following advantages that: the temperature of a
cut region is lowered, the durability of a
cutting tool is improved, the winding of
cut chips on a cutter
handle and the
cutting tool are effectively avoided, the chip blocking is avoided, the breaking phenomenon of the
cutting tool, caused by the chip blocking, is eliminated, the high-speed cutting is completely adapted, and the cutting requirement of high-strength steel is met.