Carbide cutting tool
As shown in the figure, turning the two parts of the head, shank. Bit for cutting, used for clamping shank.
The cutting portion of cemented carbide cutting tool is constituted by the rake face, cutting edge. Flank marked with the letter A and the lower corner of a symbol mark, the cutting edge is marked with the letter S. Minor cutting edge and its associated flank plus in the upper right corner of the tag write to show the difference.
l. flank
Aγ - the rake face on a cemented carbide cutting tool the surface of the chip flow.
Flank Aa - the opposite surface and the transition surface.
Flanks Aa' - the surface opposite to the machined surface.
Carbide cutting tool body contained between the front and rear part of said knife wedge.
2. Cutting edge
The main cutting edge S - collected and submitted by the front and rear edges.
The secondary cutting edge S'- outside the top of the main cutting edge of the cutting edge.
3. The tool tip
Issue to the short main and auxiliary cutting edge to cutting edge of the tool tip.
Impossible to sharpening very sharp cutting edge, there is always some edge arc, as shown in Figure a. The degree of edge sharp cutting blade edge radius rn The General Tool Steel Tool rn about 0. 01-0.02mm, carbide cutting tools rn is about 0.02-0 04mm. Meet different processing requirements in order to improve the edge strength to the front, rear grind the chamfered surface Aγ1, Aɑ1, Figure a shows. bγ1 is the first front Aγ1 chamfers width; bɑ1, first behind Aɑ1 chamfer width.
In order to improve the cutting performance of the tool tip, often made the tool tip rounded tip or a chamfering tool tip
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