锻压技术

C12MoV模具钢激光熔覆复合超硬层的耐磨性研究

英文标题：Study on wear resistance of laser cladding composite superhard layer of C12MoV die steel

作者：毕彦邵振江段文利姜立忠周小玉

单位：天津中德应用技术大学天津市精密级进模具成型技术工程中心天津市金属材料高效近净成形技术工程中心天津市津兆机电开发有限公司天津开山金属模具科技有限公司天津理工大学

分类号：V261.93+3

出版年,卷(期):页码：2019,44(8):146-149

摘要：

常规热处理的C12MoV模具钢由于磨粒和咬合磨损失效、寿命很低。以C12MoV模具钢为基体制备复合超硬层，来提升模具的耐磨性。采用SKD11粉末激光熔覆的方法形成毫米级熔覆层，再采用TD热扩散方法在激光熔覆层上形成微米级的超硬碳化钒层，构成复合超硬层。实验结果表明：基体和熔覆层、熔覆层和超硬层的结合均有扩散产生，结合紧密，并且基体-熔覆层-碳化钒层可形成硬度梯度，熔覆层对表面的TD超硬层形成有效支撑，该复合超硬层的磨损寿命显著提高，是基体的30倍，是单纯TD涂层的3倍。

The C12MoV die steel with conventional heat treatment had a short life due to the failure of abrasive particles and occlusal wear. A composite superhard layer was prepared by using C12MoV die steel as the matrix to improve the wear resistance of die. The SKD11 powder laser cladding method was used to form the millimeterscale cladding layer, and then the microscale superhard CV layer was formed on the laser cladding layer by the TD thermal diffusion method to form a composite superhard layer. It has been proved by experiments that the combination of matrix and cladding layer, cladding layer and superhard layer are diffused, and the combination is tight. Moreover, the matrixcladding layerCV layer can form a hardness gradient, and the TD superhard layer on the surface is supported by the cladding layer, so the composite superhard layer has a longer wear life of thirty times that of the matrix and is three times that of the simple TD coating.

基金项目：

天津市科技计划项目（17PTYPHZ00070）；天津中德应用技术大学项目（313/H183030）

作者简介：毕彦（1985-），男，硕士，助教 E-mail：jy00898706@163.com

参考文献：

[1]刘子豪，牛帅，苏海东，等.重载弯曲模具寿命提升的研究[J]. 重型机械，2018,(1)：41-44.

Liu Z H, Niu S, Su H D, et al. Study on life time promotion of stamping die for heavy duty[J].Heavy Machinery,2018,(1)：41-44.

[2]宋筠毅，张正林，王阳，等.TD覆层处理技术在车身定位销上的应用[J]. 上海汽车，2016,(4):42-44．

Song J Y,Zhang Z L,Wang Y,et al. Application of TD cladding treatment technology in body positioning pin [J].Shang Hai Auto,2016,(4):42-44．

[3]葛志强，韩月琴，陈运海，等.TD处理在专用车冷作模具中的应用[J]. 金属加工:热加工，2014,(21):58-59．

Ge Z Q, Han Y Q, Chen Y H, et al. Application of TD treatment in special vehicle cold working die[J].MW Metal Working,2014,(21):58-59．

[4]王玉峰．汽车冲压模激光修复技术的研究[J]．模具制造，2014，14(5)：94-96.

Wang Y F.Research on repair technology of laser automobile stamping die[J]. Die & Mould Manufacture，2014,14(5):94-96.

[5]关振中. 激光加工工艺手册[M]. 北京：中国计量出版社，1998.

Guan Z Z.Handbook of Laser Processing Technology [M].Beijing:China Metrology Publishing House,1998.

[6]李胜，许光辉，韩立发，等.激光熔覆用铁基合金材料的使用现状和研制进展[J]. 热加工工艺，2011，40（6）：112-114,117.

Li S,Xu G H,Han L F,et al. Application status and research development of Febased alloy material for laser cladding[J].Hot Working Technology,2011,40(6):112-114,117.

[7]张竖，邱斌，赵龙志.激光熔覆技术研究进展[J]．材料热处理技术，2011，40（18）：116-119.

Zhang S, Qiu B, Zhao L Z. Research progress of laser cladding technology[J]. Material Heat Treatment Technology, 2011,40(18):116-119.

[8]彭成允, 邓明. 典型冷作模具的选材及热处理[J].金属热处理, 2001, (5):31-33.

Peng C Y, Deng M. Material selection and heat treatment of typical cold working dies for typical parts[J].Heat Treatment of Metals,2001,(5),31-33.

[9]曾晓雁, 吴懿平. 表面工程学[M]. 北京: 机械工业出版社,2001.

Zeng X Y, Wu Y P. Surface Engineering[M].Beijing:Machinery Industry Press,2001.

[10]邹隽, 王华昌. 适于TDQT整体综合处理的冷作模具选材[J]. 模具制造, 2005,(3): 77-80.

Zou J, Wang H C. Material selection of cold working dies suitable for TDQT integrated processing[J]. Die & Mould Manufacture,2005,(3): 77-80.

[11]唐丽雯，杨明波，赵伟霖，等．Cr12MoV钢表面TD盐浴渗钒处理[J]．模具制造，2007,(9)：70-72.

Tang L W, Yang M B, Zhao W L, et al. Research on TD saltbath vanadizing treatment of Cr12MoV steel[J].Die & Mould Manufacture,2007,(9):70-72.

[12]孔德军，周朝政．Cr12MoV冷作模具钢TD处理后VC涂层的组织和性能[J]．中国矿业大学学报，2011，40（1）：162-166.

Kong D J, Zhou C Z. Structures and properties of VC coating on Cr12MoV cold working die steel by TD process[J].Journal of China University of Mining & Technology,2011,40(1):162-166.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】