Transactions of Materials and Heat Treatment

Title：Structure improvement on split forging mold of wheels for rail transit

Authors： Hou Peiyun

Unit： Taiyuan Heavy Industry Rail Transit Equipment Co. Ltd.

KeyWords： wheel split structure consumable mold general mold overal mold structure

ClassificationCode：TG315.2；TG76

year,vol(issue):pagenumber：2023,48(7):170-176

Abstract：

In order to reduce the manufacturing cost of wheel molds for rail transit, the original overall mold structure was classified and split, and according to the characteristic sizes of wheel forging billet, the original consumable molds were divided into consumable parts that were easy to wear and the general parts with little or no wear. Then, the volume and weight of the consumable parts should be reduced as much as possible, and the little and no wear parts were designed as a series of general molds for the long-term use of wheels with different specifications. Compared with the original overall mold structure, the split mold structure has the advantages of saving raw materials and realizing independent repair. Furthermore, through calculation and comparison, it is concluded that the total weight of the easy-wear mold after using split mold is reduced by 47.7% compared with that of the overall mold, and the total feeding weight of the mold for a single wheel is reduced by 28.4%, which effectively reduces the manufacturing cost of the mold. The production practice shows that the improved split mold structure is available for the forging of all conventional wheels and achieves good application results in production.

Funds：

山西省科技重大专项计划“揭榜挂帅”项目（202101110401009）

作者简介：侯沛云（1969-），女，硕士，高级工程师 E-mail：sxtyhpy@163.com

Reference：

[1]张宇，霍苗苗，陈霞，等.城市轨道交通车辆车轮踏面经济型镟修应用研究[J].铁路计算机应用，2022，31 (2)：73-78.

Zhang Y，Huo M M，Chen X，et al.Application research on economical lathing of wheel tread for vehicle of urban rail transit [J].Railway Computer Application，2022，31 (2)：73-78.

[2]刘华堂，白辉东. 辗钢整体车轮锻轧过程冲孔质量改进[J]. 山西冶金，2021，44(4)：210-212.

Liu H T，Bai H D.Improvement of punching quality in forging and rolling process of rolled steel integral wheel [J].Shanxi Metallurgy，2021，44(4)：210-212.

[3]孙晓明.高铁车轮塑性成形过程数值模拟及模具磨损研究[D].太原：太原科技大学，2020.

Sun X M. Research on Numerical Simulation of Plastic Forming Process and Die Wear of Highspeed Rail Wheels [D].Taiyuan： Taiyuan University of Science and Technology，2020.

[4]白辉东,刘华堂,侯沛云. 立式九辊轧机的孔型标定与调整[J]. 锻压技术，2022，47(5):181-187.

Bai H D，Liu H T，Hou P Y.Groove calibrating and adjusting for vertical ninehigh rolling mill [J]. Forging & Stamping Technology，2022，47(5):181-187.

[5]侯沛云，杜晓钟.车轮轧制用斜辊径向通裂失效分析 [J]. 太原科技大学学报，2022，43 (1)： 29-33.

Hou P Y，Du X Z.Failure analysis of radial overall crack of oblique roller in wheel rolling [J]. Journal of Taiyuan University of Science and Technology， 2022， 43 (1)： 29-33.

[6]韦光珍，张玉平，王东. 锻造比对新型锻造模具钢磨损和冲击性能的影响 [J].热加工工艺，2020，49(11)：111-113.

Wei G Z，Zhang Y P，Wang D. Effect of forging ratio on wear and impact properties of new forging die steel [J].Hot Working Technology，2020，49(11)：111-113.

[7]李彦奎，吕彦明，倪明明. 航空叶片模具设计参数对模具磨损影响分析[J].材料科学与工艺，2019，27(3)：79-84.

Li Y K，Lyu Y M，Ni M M.The analysis of influence of design parameters of air blades on die wear[J]. Materials Science and Technology， 2019，27(3)：79-84.

[8]张浩，郭磊.基于FEA的齿坯锻造模具寿命的提高 [J].锻压技术，2022，47(10)：250-256.

Zhang H，Guo L.Improvement of service life for gear blank forging die based on FEA [J]. Forging & Stamping Technology， 2022，47(10)：250-256.

[9]杨子帅，吴博雅，李奇颖，等.汽车前轴成形模具磨损行为的实验与数值模拟研究[J].锻压技术，2022，47(9)：188-195.

Yang Z S，Wu B Y，Li Q Y，et al. Experimental and numerical simulation study on wear behavior of forming die for automobile front axle beam[J].Forging & Stamping Technology，2022，47(9)：188-195.

[10]张继方，晋会杰，徐颖若.齿轮温锻模具磨损失效分析[J].锻压技术，2022，47(5)：38-44.

Zhang J F，Jin H J，Xu Y R. Analysis on wear failure of warm forging die for gear [J]. Forging & Stamping Technology，2022，47(5)：38-44.

[11]杨红超,淳道勇,和永岗,等. GH4169合金叶片挤杆工序模具磨损及寿命的数值模拟分析[J]. 锻压技术,2021,46(3):198-207.

Yang H C，Chun D Y，He Y G，et al. Numerical simulation analysis on wear and life of mold in bar extrusion process for GH4169 alloy blade [J]. Forging & Stamping Technology，2021，46(3):198-207.

[12]齐双强.活塞预锻模具磨损失效研究 [J]. 锻压技术，2021，46(3)：21-26.

Qi S Q. Research on wear failure for preforging die of piston[J]. Forging & Stamping Technology， 2021，46 (3): 21-26.

Service：

【This site has not yet opened Download Service】【Add Favorite】