Error Compensation of Lead-screw for Semi-closed NC Machine Tool

The price of ball-screw with high accuracy is very high.Using high accuracy lead-screw in the common NC machine tool to ensure the processing-accuracy will increase operating costs.To solve the problem between the costs and processing-accuracy,the laser-interferometer was used to measure the error,the related software was used to compensate the position error of the NC machine tool,then high accuracy parts were produced with low accuracy lead-screw,the production costs were reduced.