Standard No.:	GB/T 5291.2-2003
English Name:	Test methods of crystalline layered sodium disilicate - Gravimetric methods for determination of the loss on ignition
Chinese Name:	电火花成形机 精度检验 第2部分:双立柱机床(移动主轴头型和十字工作台型)
Chinese Classification:	G12    Inorganic salt
Professional Classification:	GB    National Standard
ICS Classification:	71.060.50 71.060.50    Salts 71.060.50
Issued by:	AQSIQ
Issued on:	2003-1-1
Implemented on:	2004-6-1
Status:	superseded
Superseded by:	GB/T 5291.2-2022 Die sinking electro-discharge machines—Testing of the accuracy—Part 2:Double-column machines (slide-head type)
Superseded on:	2022-12-30
Language:	English
File Format:	PDF
Word Count:	12500 words
Price(USD):	355.00
Delivery:	via email in 1~3 business day

GB／T5291的本部分参照GB／T17421．1和GB／T17421．2规定了一般用途、常规精度的电火花成形机(EDM)的几何精度检验、加工检验及数控轴定位精度和重复定位精度的检验。本部分还规定了与上述检验相对应的允差值。本部分适用于移动主轴头型和十字工作台型的双立柱机床。本部分仅涉及机床精度的检验，而不适于机床运行试验(振动、异常噪声、零部件的爬行等)或其参数(如速度、进给量等)的检查，这些检查通常应在精度检验前进行。