火车轮材料为行业专用定制材料，材料牌号主要有ER6、ER7、ER8、ER9、CL60、CL65、CL70等,根据不同使用场景选择相应的材料，虽命名方式不同，但基本材料主要为合金钢。
Railway wheel materials are customized materials used in the industry, and the material grades mainly include ER6, ER7, ER8. ER9, CL60, CL65, CL70, etc. The corresponding materials are selected according to different scenarios. Although the naming methods are different, the basic materials are mainly alloy steels.
车轮种类包括货车轮、客车轮、高铁轮等。火车行驶到一定距离因磨损及变形需对车轮进行修复，以保证轮轨的型面配合状态，降低接触应力和磨耗，改善列车通过曲线性能。针对火车轮修复加工提效需求，厦门金鹭开发LNMX系列刀具。
Wheel types include freight car wheel, passenger car wheel, high-speed rail wheel, etc. When the train travels to a certain distance, It is necessary to repair the wheel due to wear and deformation so as to ensure the matching state of wheel rail profile, reduce the contact stress and wear, Improve the curve performance of the train. In order to improve the efficiency of train wheel repairing, GESAC developed LNMX series cutting tools.
刀具介绍
Introduction of LNMX
设计特点 | Design
槽型介绍 | Geometry
系列规格 | Series Specifications
本案例为轨道交通行业火车轮修复外圆加工案例，在相同测试工况情况下，我司刀具平均加工工件数量优于进口品牌。
This case is the case of railway wheel repair cylindrical machining in rail transit industry. Under the same testing conditions, the average number of workpieces processed by our cutting tools is better than that of imported brands.
加工难点 | Processing Difficulty
待修复火车轮表面质量较差，加工余量较不均匀
The surface quality of the train wheel to be repaired is poor, and there is a very large uneven margin
现场粗加工工况较差，冷却形式主要为干切
The rough machining condition on site is poor, and it is basically dry cutting
轮缘与踏面连接的过渡圆弧，余量在2-4mm左右，刀片易断屑不良
The transition arc connecting the rim and tread has a margin of about 2-4mm, and the chip breaking is not smooth
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