Research on Methods of Dimensioning the Tolerance Based on AutoCAD

An ideal boundary, which stands for the limit condition of real feature under meeting design demands, can be formed by suitable dimensional and geometrical tolerances.

Drawing the mechanical engineering drawing usually need to mark the dimension tolerance of the parts.

Interactive inquiry and automatic marking of dimensional tolerance on AutoCAD;

Mathematical model of dimensional tolerance of straight line based on variation along DOF

The thesis,by method of drawing dynamic tolerance range picture,vividly analyses inter-compensation among dimensional tolerance,position tolerance and form tolerance.

Inter compensation between dimension tolerance and shape-position tolerance;

Analysis and discussion of inland and overseas cold roll electric steel dimension tolerance;

Study on parametric program for checking dimension tolerance in mechanical design CAD;

We calculate and analyze the mutual compensation between size tolerance and form & position tolerance while applying“the minimun material requirement” to the tested essential factors and standard key elements.

It particularly points out the relations between shape and position tolerance, size tolerance and surface rough degree.