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J-200潜孔钻头,在生产中已经取得很好的成绩。为了进一步提高质量,需要研究钻头体的受力情况,了解工作过程中钻头受力的大小和应力的分布规律,为钻头体的结构设计,材料选择和制订热处理工艺提供依据。为此,我们制做了与实物几何相似,线性尺寸成比例的立体模型,用光弹性试验方法,对J-200型潜孔钻头体内的应力分布进行了测定。 (一) 模型制造在对钻头进行光弹应
J-200 DTH drill bit, in the production has achieved very good results. In order to further improve the quality of the bit body, it is necessary to study the stress of the bit body and understand the distribution rules of the bit stress and stress during the working process, which provides the basis for the structure design, material selection and heat treatment process of the bit body. For this reason, we made a three-dimensional model that is similar to the physical geometry and has a linear scale, and measured the stress distribution in the J-200 DTH drill using the photoelastic test method. (A) the model of the bit in the photoelastic response