Extension bars are often used as an extension tool for deep hole machining and can serve to reduce dependence on long tools, reduce the number of tools purchased, reduce machining costs and increase productivity, and are therefore widely used.

The affinity between WSS PCD tools and non-ferrous metals and non-metallic materials is very small, and it is not easy to develop chip tumours. In addition, the coefficient of thermal expansion of PCD is only 0.9X10-6~1.18X10-6, which is only one-fifth of that of cemented carbide, so the thermal deformation is small, which can effectively achieve high precision and stable machining with high dimensional accuracy.

WSS solutions and tools for aluminium and cast iron engine parts are based on the technical competence of a team of specialist technicians and the continuous adaptation and optimisation of tools to produce better process standards.

The cases are as follows

Tool drawing number: 069511

Workpiece name: Extension bar

Workpiece material：Aluminium alloy

Workpiece diameter：φ253

Roughness：Ra3.2

Machining method: Turning, internal cooling

Machining process: Rough turning of end face and outer circle