The Effect of the number of edge of carbide end Milling Cutter on Machining Performance

The Effect of the number of edge of carbide end Milling Cutter on Machining Performance?

The number of edges is selected by the cutting mode of the end mill. For example, to cut a slot of the same width as the tool diameter, a large capacity chip slot is required, usually using a 2-edge tool. When cutting wide and small side cutting, choose the multi-edge end milling cutter with the tool rigidity priority. Rigidity and machining efficiency (tool life) can be improved by increasing the number of edges, but at the same time, chip removal will be weakened. However, suitable selection of cutting conditions can overcome the weakness of chip removal, and multi-edge is the direction of future development.

The effect of coating on Tool performance?

Cutting, the contact between the blade and the workpiece is easy to produce 800-1200 degrees of high temperature. The cutting heat generated by high temperature is transmitted to the blade, the tool wear is transmitted to the workpiece, and the workpiece deformation chips take away the cutting heat. We expect that when the chip is discharged, the friction between the chip and the front tool surface causes the temperature to rise, resulting in crescent wear (in depth) on the front tool surface. On the other hand, the friction heat between the back tool surface and the workpiece rises sharply, resulting in the back tool surface wear.

The coating not only maintains the strength and toughness of the tool body, but also maintains the higher hardness and wear resistance of the surface, and at the same time, maintains the high red hardness.

Common end mills are generally divided into:

1, flat end milling cutter, finish milling or rough milling, milling groove, remove a large number of blank, small area horizontal plane or contour finish milling;

2, ball end milling cutter, surface semi-finishing milling and finishing milling; Small chamferes on steep/straight walls can be finely milled with a knife.

3, round nose milling cutter, surface changes are small, narrow sag area is less, relatively flat area more rough milling.

4, flat end milling cutter with chamfer, can do rough milling to remove a large number of blanks, but also fine milling flat surface (relative to steep) small chamfer.

5, forming milling cutter, including chamfering cutter, T milling cutter or called drum cutter, tooth cutter, internal R knife.

Cutting edge profile A milling cutter designed according to the profile of the workpiece is called a form milling cutter. Like the forming tool, it can ensure the dimensional accuracy, shape consistency and higher productivity of the workpiece being processed. Form milling cutter is widely used in production, especially in turbine blade processing.

6, chamfering knife, chamfering knife shape and chamfering shape is the same, is divided into milling round chamfering and oblique chamfering milling cutter.

Mainly used for chamfering or deburring orifice.

There are also two kinds of plane countersinks (for countersinking plane or head) and internal cone countersinks (for the outer Angle of the inverted bolt)

7, T cutter, milling T groove;

8, tooth cutter, milling out a variety of tooth types, such as gear.

9, rough cutter (also called waveform cutter), for aluminum and copper alloy cutting design of rough milling cutter, can be fast processing. Suitable for rough processing; High processing efficiency; Good chip discharge performance, large chip discharge; With high metal cutting rate.

Milling cutter commonly has two kinds of materials: high speed steel, carbide. The latter relative to the former high hardness, cutting force is strong, can improve the speed and feed rate, improve productivity, so that the knife is not obvious, and processing stainless steel/titanium alloy and other difficult materials, but the cost is higher, and in the case of rapid alternating cutting force easy to break the knife.

10, taper milling cutter

Carbide taper flat bottom milling cutter main processing: with taper deep groove, taper hole, bevel processing; Carbide taper ball end milling cutter main processing: impeller, blade, cavity and other processing;