本标准适用于电子束焊机运动部件的跳动精度 根据EN ISO 14744-1的要求，应结合验收检查进行测量。它提供 用于进行测量的程序和设备的信息。考虑到各种各样的 电子束焊接机，验收检查所需的测量范围应为 为相关机器单独指定。 此处定义的跳动精度是一个系统误差，因此算作测量的参数之一 机床的性能可以被描述。影响性能的其他因素（例如动力， 真空度、数控机床的定位精度）和统计评估方法不包括在本手册中 标准 电子束焊接涉及工件和/或电子枪的移动。成功焊接 假设该移动受相关设备（如工作台和旋转夹具）的影响，并带有 给定的准确度。因此，测量的目的是检查是否需要 保持跳动精度。

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.