老外图纸中一般在“形位公差”后加的“tir”是什么意思?
One Flower 一心花艺r
2024-06-28 12:15:41
最佳回答
in metrology and the fields that it serves (such as manufacturing, machining, and engineering), total indicator reading (tir), also known by the newer name full indicator movement (fim), ** the difference between the maximum and minimum measurements, that **, readings of an indicator, on the planar, cylindrical, or contoured surface of a part,[1] showing its amount of deviation from flatness, roundness (circularity), cylindricity, concentricity with other cylindrical features, or similar conditions. the indicator traditionally would be a dial indicator; today dial-type and digital indicators coex**t.在计量学和它所服务的领域(如制造,加工和工程)中,总指标读数(tir),也称为较新的名称全指标运动(fim),是最大和最小测量值之间的差异,是指部件的平面,圆柱或轮廓表面上的指示器读数,[1]显示其与平直度,圆度(圆度),圆柱度,与其他圆柱特征的同心度或类似条件的偏差量。该指标传统上是一个百分表; 今天拨号型和数字指标并存。 20210311