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- W2371874503 abstract "DTH(down-the-hole) bit is a very important equipment used to break rocks in air drilling,when drilling teeth inlay into bit's body,the wring can directly effect theirs contact strength.In this paper,taking 311.1mm DTH bit and 19mm drilling tooth as the research target,a mechanical model of interference fit between bit's body and tooth was established,and the analog simulation with computer was carried out.Through the contact analysis between bit's body and tooth with the wring at 0.01、0.02、0.04、0.06、0.07、0.08、0.09、0.1mm,the results showed that while the wring was less than or equal to 0.07mm,the bit's body was elastic deformation;while the wring was 0.08mm,part of contact area on bit started to occur plastic deformation;while the wring was 0.1mm,the stress value along bit's body hole was close to this material's strength limit.According to the analysis results and considering the effect of shaping enhanced,the assemble wring of 0.07mm～0.08mm about 311.1mm DTH bit and 19mm drilling tooth was recommended.The research results provided theoretical criteria for reasonable assemble air drilling DTH bit's tooth into its body." @default.
- W2371874503 created "2016-06-24" @default.
- W2371874503 creator A5017047898 @default.
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- W2371874503 date "2012-01-01" @default.
- W2371874503 modified "2023-09-26" @default.
- W2371874503 title "ANALYSISES OF AIR DRILLING DOWN-THE-HOLE BITS' INTERFERENCE BETWEEN BITS' BODY AND TEETH" @default.
- W2371874503 hasPublicationYear "2012" @default.
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