标准摘要
[中文适用范围]： 涵盖了各类采用电子束作为热源的焊接设备，为制造商、用户及检验机构提供了统一的技术参照，从而保障焊接作业的质量与安全性。该标准在制定时充分考虑了工业现场的实际操作需求，力求在保证精度的同时兼顾测量的可行性。 [外文原描述]： This standard is intended for use when the run-out accuracy of the moving parts of electron beam welding machines complying with EN ISO 14744-1 is to be measured in connection with an acceptance inspection. It provides information on the procedure and apparatus to be used for making the measurements. Given the great variety of electron beam welding machines, the scope of measurements required for acceptance inspection purposes should be specified separately for the machine concerned. Run-out accuracy as defined here is a systematic error and thus counts as one of the parameters by which the performance of a machine tool can be characterized. Other factors influencing performance (e.g. dynamic forces, vacuum level, positioning accuracy of CNC machines) and methods of statistical evaluation are not covered in this standard. Electron beam welding involves movement of the workpiece and/or of the electron gun. Successful welding presupposes that this movement is effected by the devices concerned (e.g. work table and rotating fixture) with a given degree of accuracy. The purpose of the measurement is thus to check whether and to what extent the required run-out accuracy is maintained.
英文名称Welding — Acceptance inspection of electron beam welding machines — Part 5: Measurement of run-out accuracy