Development of a workpiece machining process ensuring necessary accuracy, rigidity, and repeatability after heat treatment

A new product called for machining of a critical part after its heat treatment, posing a challenge of exacting accuracy requirements for a part which is hard to machine.

INFORMATION ABOUT THE PROJECT

Sector: Oil-and-gas and earth-drilling machine production
Workpiece: Casing. A complex steel part, very demanding with regard to accuracy, surface roughness, as well as to the skin hardness of the metal and to thermal stability.
Provider: Pumori-Engineering Invest

Project features

A solution was developed using the OKUMA GENOS M560R-VE-A machine tool with the GSA CNC-250R turntable after heat treatment, providing the necessary accuracy, rigidity, and repeatability. An important factor contributing to the success of the project was special additional tooling: a chuck and a special centre made by SCHUNK, and cutting tools from ISCAR.

Project stages

Process design
Selection and supply of equipment
Selection and supply of cutting and clamping tools
Design and manufacture of special tooling
Development of NC programs for the machine
Start-up and adjustment activities
Process implementation and test manufacture
Training of the customer's staff

Project result

The process successfully implemented. A trial lot of the parts was manufactured, subsequently the product was put into quantity production; it is competitive with imported analogues.