What is machining precision? Machine the concept of precision

The real measure that machining precision is surface of the spare parts after treatment, appearance, position of the ideal geometry parameter of parameter of 3 kinds of geometry and blueprint requirement accord with degree. Ideal geometrical parameter, to dimension character, it is average size; To exterior geometry appearance character, namely absolutely circle, columnar, planar, cone and wait point-blank; To the mutual position between the surface character, it is absolutely parallel, perpendicular, coaxial, semmetry. The deviate numerical value of actual geometry parameter and ideal geometry parameter calls the part machining error. Processing precision and machining error is the term that evaluates parameter of treatment surface geometry. Treatment precision is measured with tolerancepublic errand grade, grade value is less, its precision is taller; Machining error expresses with numerical value, numerical value is greater, its error is bigger. Treatment precision is tall, it is machining error small, vice versa. The actual parameter that any treatment method earning go to won't allow absolutely truly, look from the function of the spare parts, inside the tolerancepublic errand range that wants machining error to ask in part drawing only, thought to assure to machine precision. The quality of the machine depends on the machines quality and machine assembly of the spare parts quality, quality of spare parts treatment includes a spare parts to machine precision and exterior quality two much. Machining precision is the actual geometry parameter after showing the spare parts is machined (dimension, appearance and position) the level that closes with conform to of ideal geometry parameter. The difference between them calls machining error. The size of machining error mirrorred the on any account that processes precision. The error is versed in precision is jumped over substantially more low, smaller treatment precision jumps over the error tall. Treatment precision includes 3 respects content: The public errand of the real measure of the spare parts after ● dimension precision points to treatment and spare parts dimension takes central conform to to close level. The conform to of the actual geometry appearance of the spare parts surface after ● appearance precision points to treatment and good geometrical figure closes level. The spare parts after ● position precision points to treatment concerns the real position between the surface and good place conform to to close level. CNC Milling