上海交通大学学报

上海交通大学学报（自然版） ›› 2011, Vol. 45 ›› Issue (11): 1647-1652.

• 金属学与金属工艺 • 上一篇    下一篇

分块杯形砂轮磨削高硬度涂层球面温度

蒋天一，侯海云，胡德金，许开州   

  1. (上海交通大学 机械与动力工程学院， 上海 200240)
  • 收稿日期:2010-12-09 出版日期:2011-11-30 发布日期:2011-11-30
  • 基金资助:

    国家自然科学基金资助项目(51075273)，机械系统与振动国家重点实验室资助项目(MSVMS201104)，华中科技大学数字制造装备与技术国家重点实验室开放课题(2008DMETKF001)

Study on Sphere Grinding Temperature of Coated Workpiece with Block Structure Cup Wheel

  1. (School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2010-12-09 Online:2011-11-30 Published:2011-11-30

摘要： 针对分块杯形砂轮磨削高硬度涂层球面的实际工况，计算移动热源的有效宽度，并使用三角形移动热源模型对磨削温度场进行理论建模.分析了磨削运动对传热过程的影响，结合磨粒端面温度和一维导热模型计算热量传入工件比率.通过实验比较了分块杯形砂轮和普通杯形砂轮的磨削温度及磨后表面形貌，同时，分析了磨削参数对磨削温度的影响.结果表明：分块杯形砂轮磨削高硬度涂层球面较普通杯形砂轮具有更低的磨削温度和更好的磨削条件.

关键词: 球面磨削, 杯形砂轮, 涂层材料, 断续磨削, 磨削温度

Abstract: The triangular heat source model and the effective width of moving heat source were used to deduct theoretical formula of temperature field according to the real conditions of the sphere grinding of coated workpiece with block structure cup wheel. The dynamic effect of grinding toward heat transfer process, the face temperature of wear debris and the onedimension heat transfer model were integrated to study on ratio of heat introduced to workpiece. The grinding temperature and surface morphology were compared between the block structure cup wheel and normal cup wheel by the experiment, and the influence of grinding parameters toward grinding temperature was also analyzed. The results show that there are lower grinding temperature and better grinding conditions in sphere grinding of coated workpiece with block structure cup wheel than in that with normal cup wheel.

Key words: sphere grinding, cup wheel, coated workpiece, intermittent grinding, grinding temperature

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