GB/T 20957.7-2007 Active National standards

GB/T 20957.7-2007 Test conditions for precision machining centres—Part 7:Accuracy of a finished test piece

Publish Date: 2007-06-25 Implement Date: 2007-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 20957.7-2007

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Drilling, boring, and milling machines

ICS Name: Lathes and milling machines

Publish Date: 2007-06-25

Implement Date: 2007-11-01

Pages: 9 pages

Scope

This part specifies the characteristics, dimensions, and cutting tests of standard specimens under finishing conditions, which are used to evaluate the cutting accuracy of machine tools. This part is applicable to precision machining centers with a linear axis travel of up to 2,000 mm. Precision machining centers with a linear axis travel greater than 2,000 mm can also be used for reference.

Development Information

Word Count: 16 Thousand words Pages: 9 pages

Same series standard

GB/T 20957.1-2007 Test conditions for precision machining centres—Part 1:Geometric tests for machines with horizontal spindle and with accessory heads(horizontal Z axis) GB/T 20957.2-2007 Test conditions for machining centres—Part 2:Geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis(vertical Z-axis) GB/T 20957.4-2007 Test conditions for precision machining centres—Part 4:Accuracy and repeatability of positioning of linear and rotary axes GB/T 20957.5-2007 Test conditions of precision machining centres—Part 5:Tests for accuracy and repeatability of positioning of work-holding pallets

Referenced Standards

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 5342-2006(所有部分)

Adopt standards

ISO 10791-7:1998

Related Standards

GB/T 3932-1983 Replaced

GB/T 3932-1983 Milling machines with table of fixed height with horizontal or vertical spindle—Testing of the accuracy

Publish Date: 1983-11-09

GB/T 5289.2-2000 Replaced

GB/T 5289.2-2000 Test conditions for boring and milling machines with horizontal spindle—Testing of the accuracy—Part 2:Table—type machines

Publish Date: 2000-02-18

GB/T 3933.2-2002 Replaced

GB/T 3933.2-2002 Test conditions for milling machines with table of variable height—Testing of accuracy—Part 2:Machines with horizontal spindle

Publish Date: 2002-09-13

GB/T 3933.3-2002 Active

GB/T 3933.3-2002 Test conditions for milling machines with table of variable height—Testing of accuracy—Part 3:Machines with vertical spindle

Publish Date: 2002-09-13

GB/T 19362.1-2003 Active

GB/T 19362.1-2003 Machine tools—Test conditions for bridge-type milling machines—Testing of the accuracy—Part 1:Fixed bridge (portal-type)machines

Publish Date: 2003-11-10

GB/T 9167-2003 Replaced

GB/T 9167-2003 Spline hobbing machines—Testing of the accuracy

Publish Date: 2003-11-10