Cemented carbide tools milling introduction

Cemented carbide tools milling through the rotating milling cutter plane, surface, trench, thread and toothed etc..

Metal cutting includes turning, milling, grinding, forming and drilling. The milling characteristics are as follows: ① The intermittent cutting; ② The workpiece is fixed, and milling by rotating the cutter③ milling chip thickness will change.

The cemented carbide tools milling main can be divided into two categories peripheral milling (the blade circumference nose milling - face milling and side milling cutters, etc.) and end milling. Like milling cutters of the end face and the whole body has a cutting edge of the milling tool, can implement two milling.

Cemented Carbide Tools Milling Process

Cemented carbide tools milling completes the metal cutting by rotating the cutting edge of the tool along the workpiece in almost any direction programmable feed motion. This cutting action makes milling become an effective common processing method. Using the constrained path pattern, each cutting edge of the milling tool can be removed a certain number of metals, which makes cutting the formation and chip no longer is of paramount importance. The most common application is milling can be used to generate the plane - face milling, but with the increasing number of 5-axis machining centers and multi-tasking machine tools, other processing methods and surface processing methods has also been considerable development.

Cemented carbide tools milling process types

The parts impact or from the point of view of the tool path, cemented carbide tools milling process types include: face milling, shoulder milling, contour milling, cavity milling, slot milling, milling, thread milling, cutting high feed milling, plunging, ramping milling, helical interpolation milling and circular interpolation milling and trochoidal milling.

Cemented Carbide Tools Milling Definition

Cemented carbide milling tools using the one or more combinations of the following basic milling cutting action: radial, peripheral or axial cutting. Changing the milling method, a milling tool can rotate about a tool axis direction of the feed movement along the cutting action. For example: the face milling cutting action carried out by the combination of a cutting edge, wherein the main use of the cutting action on the periphery, and to a certain extent also with the cutting action of the surface of the milling tool. Milling tool along the workpiece is rotated at right angles to the direction of radial feed. The three edges milling major milling tool milling around the cutting edge. The milling tool is parallel to the rotation about an axis tangential feed. Plunge milling mainly use the tool end face or the end of the cutting edge, and through the axial feed, to perform local milling effect.

How to prevent cemented carbide milling wear?

(l) A reasonable choice the cemented carbide milling cutter blade grades: high toughness, resistance to thermal cracking susceptibility is small and has good heat resistance and wear resistance of the blade material should be used. Example: milling steel, YS30, YS25 grade blade can be used; optional milling cast iron the YD15 grades blade prevent milling cutter wear.

(2) Rational selection of milling parameters: in a certain processing conditions, there is a does not produce the breakage of the safety of the working area, as shown. Select can guarantee the cemented carbide milling cutter working properly to prevent the milling cutter wear the Vc and ƒz safe operating area.

(3) The relative position between the workpiece and cemented carbide milling cutter a reasonable choice: choose the installation location of the face milling cutter wear plays an important role in reducing the face milling. 

Cemented Carbide Broaches Types & Applications

Cemented carbide broaches species may be distinguished by machined surface portion, the structure and use of the broaches.

1.Distinguish cemented carbide broaches by different surface to be machined parts

Surface to be machined parts can be divided into within broaches and outside broaches. More common within broaches and outside broaches: round broaches, spline broaches, broaches Quartet broaches, keyway broaches and outside plane broaches.

2.Distinguish cemented carbide broaches by structures

Cemented carbide broaches are divided into integral broaches, welded broaches, assembly broaches and tipped broaches by structures. Cemented carbide broaches using for processing medium and small size surface are made of overall high-speed steel; Cemented carbide broaches machining large size, complex shape surface are made of assembled structures.

3.Distinguish cemented carbide broaches by different use methods

Cemented carbide broaches use methods can be divided into broaches, push knives and rotary broaches.

The push knives thrust working under. Push knives are mainly used for the correction hardness <HRC45, the amount of deformation <0.1mm machined hole. The push knives structures is similar with broaches, but the fewer number of teeth, the length is short, the front and rear shank portion is relatively simple. The rotary broaches torque acts through the rotational movement of the cutting of the workpiece. 

What is Cemented Carbide Broaches?

Cemented carbide broaches are multi-tooth tools. When broaching, one tooth above the previous one tooth can cut away metal from the workpiece layer by layer, in order to obtain the desired working surface. Cemented carbide broaches efficient multi-tooth tool. Broaching cemented carbide broaches on the changes in the size of the cutter tooth resection allowance broaching tolerance level: IT7 ~~ IT9 surface roughness value: 0.5 ~~ 3.2μm.