Общий каталог ZCC-CT 2019 - страница 929

A Indexable milling

Pitch selection The pitch is the distance between one point on one cutting edge and the same point on the next edge. Milling cutters are mainly classified into wide, normal and fine pitches.

Operational stability

B

stable and main power of machine is sufficient, achieve high productive efficiency. selecting a wide pitch can achieve high pro- ductive efficiency. C

Approach angle

The approach angle is composed by insert. Tool body, chip thickness, cutting forces and tool life are affected especially by the approach angle. Decreasing the approach angle reduces chip thickness and spreads the cutting area between cutting edge and work piece for a given feed rate. A smaller approach angle also guarantees stable entering or exiting the work piece, to protect the cutting edge and extend tool life. However this will increase higher axial cutting forces on the work piece, thus it is not suitable for machining thin work piecees such as thin plates.

E