GB/T 16462.8-2009
Test conditions for numerically controlled turning machines and turning centres-Part 8:Evaluation of thermal distortions (English Version)

Standard No.: GB/T 16462.8-2009
Language: Chinese, Available in English version
Release Date: 2009
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 16462.8-2009

Scope: This part of GB/T 16462 specifies the evaluation of the thermal deformation of the machine tool structure and positioning system of CNC lathes and turning centers. This part applies to CNC lathes and turning centers with linear axis travel up to 2000mm. CNC lathes and turning centers with a linear axis stroke greater than 2000mm can also be used as a reference. This part specifies three inspection methods, namely: - ambient temperature change error inspection; - thermal deformation inspection caused by spindle rotation; - thermal deformation inspection caused by linear axis movement. It should be noted that no specific tolerance values are given for the tests described in this section.

GB/T 16462.8-2009 Referenced Document

GB/T 16462.1 Inspection conditions for CNC lathes and turning centers Part 1: Inspection of geometric accuracy of horizontal machine tools*， 2023-12-28 Update
GB/T 17421.1-1998 Test code for machine tools. Part 1: Geometric accuracy of machines operating under no-load or finishing conditions
GB/T 17421.3-2009 Test code for machine tools-Part 3: Determination of thermal effects

2009 GB/T 16462.8-2009 Test conditions for numerically controlled turning machines and turning centres-Part 8:Evaluation of thermal distortions