The theoretical systems of computing method for present positioning error analysis and technology dimension chain mutually fragment,which results in that working processes precision needs to separately calculate positioning error and technology dimension chain and this often obtains contradictionary conclusion.

Finally,the direction to renovate the finishing procedure is pointed out to meet the requirement of production.

Technology that affects the processing precision of hairpin mold and measurements to improve the precision;

The effect factors on processing precision are analyzed and the measures for processing precision of linear cutting machine to increase rate of final products are summarized.

With the continuous development of science and technology,the requirement for the processing precision of the product becomes more and more high.

Technics analysis of technological structure preparation and holes processing accuracy;

Method of modeling and simulation to improve processing accuracy of industrial robot

On the relation between workpiece installation and workpiece processing accuracy

Measures to promote the machining precision of numerically controlled lathe with open or half-open loop system;

Improvements on machining precision of forming curl in computer aided machining;

Main factors affecting machining precision and surface quality in manufacturing cavity and core were analyzed from the aspect of residual stress of the material,machining technology and machining tool.