Cemented carbide turning tools feature

The cutting portions of cemented carbide turning tools are composed by the main cutting edge, the secondary cutting edge, in front of, behind and vice behind. Cemented carbide turning tools’ front types depend on the nature of the workpiece material and tool material. The simplest is plane, positive rake angle plane suitable for high-speed steel tool and finishing with carbide turning tools, hard negative rake angle of the plane applicable to the processing of high-strength steel and rough cut steel castings carbide turning tools. With chamfered type of plane is in the plane of positive rake angle grinding have negative chamfer to improve the strength of the cutting edge, cemented carbide turning tools suitable for machining cast iron and steel. Claim chip breaker cemented carbide turning tool can be used with a negative chamfer of the arc face, or on the front of the flat-type grind chip breaker station.

Cemented carbide turning tools application

Cemented carbide turning tools can be used for horizontal lathes, turret lathes, automatic lathes and CNC lathes, turning tools have a lot of types and broad many applications.

Cemented carbide turning tools

Cemented carbide turning toosl are used for the turning process, the tool having a cutting portion. Cemented carbide turning tools are one of the most widely used tools. The working portion of the cemented carbide turning tools is that of generating and processing a portion of the chip, including the edge, so that the structural elements of the chips of broken or rolled structure, the chip removal space or volume reservoir chips, the cutting fluid passage.

Cemented carbide cutting tools cutting layer parameters

Cutting layer of the cemented carbide cutting tools is the workpiece material layer to cut through the removal of the workpiece in a single pass of to the cutting portion. Cutting layer shape, size directly affects the deformation of the cutting process, the tool bear the load as well as the cemented carbide cutting tool wear. As shown, when the main and auxiliary cutting edges is straight, and λs = O °, KR> 0 °, the cutting layer to the nominal cross section ABCD is a parallelogram, if Kr = 90 °, or rectangular.

Cemented Carbide Cutting Tools Working Angles

The installation position of the cemented carbide cutting tools, cutting Synthesis of the direction of movement changes, will cause a change in angle of the tungsten carbide cutting tools. Thus research during the cutting process the tool angle, the relative position of the tungsten carbide cutting tools with the workpiece, the relative movement to create a reference system on the basis of this reference system, said reference system. The tool perspective - that of the work reference system defined angle.

Cemented carbide cutting tools angles reference system

Cemented carbide cutting tools angles are important parameter for determining the tungsten carbide cutting portion of the cutting tools geometry. Cemented carbide cutting tools angles for defining the respective reference coordinate plane, called the reference system. Reference system, there are two types: the tool stationary reference frame - the marked tool design, grinding and measuring benchmarks using this tool angle defined by said tool marked angle; the tool working reference system - to determine the cutting tool angles benchmark, use this tool angle defined by said tool angle.

Tungsten carbide cutting tools design, label, grinding, and the most common is the measured angle to the reference system of the orthogonal planes. But the label indexable cutter or a large edge inclination tool commonly used in the normal plane of reference. In the manufacturing process of cemented carbide cutting tools such as milling cutter groove when sharpening flank, often required assuming that the work plane, the angle of the back of the plane reference system, or prior to use, followed by orthogonal plane angle of the reference system.

Cemented Carbide Cutting Tools Motion

Cemented carbide cutting tools motion in the role played by relative movement of the workpiece and cemented carbide cutting tools machining, divided into the main movement and feed movement.
1. Main motion
The main motion is the most important cutting power consumption up to the movement; it is the relative motion of carbide cutting tool and the workpiece between students. The car, the main motion of the boring machine spindle rotation movement.
2．Feed motion
The feed motion of the additional movement is generated between the cemented carbide cutting tool and the workpiece in order to maintain the cutting performed continuously. Vf is cars cylindrical longitudinal feed speed of movement, it is continuous. Horizontal feed movement is intermittent.
3．Cutting layer

Cutting cemented carbide cutting tools to cut through the removal of the workpiece in a single pass of the workpiece material layer. Workpiece rotation time, the cemented carbide cutting tool just moved from position I to Ⅱ, cut the workpiece material between the layer I and Ⅱ. The quadrilateral ABCD is the nominal cross-sectional area of the cutting layer. Actual cutting layer cross-section is a quadrilateral ABCE , △ AED is the cross-sectional area of the remaining on the surface of the processed.

Cemented Carbide Tool Life

Tools wear at high temperature conditions by the workpiece in the cutting tool, the friction of the chips, so that the tool material gradually wear or breakage of the phenomenon appears. Research tool wear causes prevent premature excessive tool wear and how to extend cemented carbide tool life, which is affecting the efficiency of production, processing costs and processing quality is an important topic.


Cemented carbide tool life T is defined as the total cutting tool wear reaches a predetermined standard time (MIM), factors affecting the tool life.