Effect of reinforced fiber on cutting swing of ultra-thin and ultra-hard resin grinding wheel
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摘要: 针对树脂超薄超硬砂轮切割偏摆幅度较大的问题,研究碳纤维、玻璃纤维及两者混杂对树脂超薄超硬切割砂轮切割偏摆的影响,并对其影响机理进行分析。试验结果表明:加入碳纤维有利于提高砂轮的抗折强度,加入玻璃纤维有利于降低砂轮的切割阻力,碳纤维和玻璃纤维两者混杂可有效降低砂轮的切割偏摆幅度。当加入体积分数为15%的直径为7.6 μm、长度为100 μm的碳纤维和体积分数为5%的直径为15.0 μm、长度为120 μm的玻璃纤维时,可有效降低砂轮的切割偏摆幅度,其偏摆幅度最小可达0.006 7 mm,满足生产要求,切割偏摆性能达到最优。Abstract: Aiming at the big swing amplitude of ultra thin resin integrated cutting wheel the effect of adding carbon fibre, glass fibre and their mixture on the mechanical and cutting performance of the cutters was studied by cutting experiment, and the mechanism that affect the amplitude was studied and analyzed. Results show that the addition of carbon fiber is beneficial to improve the bending strength of grinding wheel, and the addition of glass fiber is beneficial to reduce the cutting resistance of grinding wheel. The combination of carbon fiber and glass fiber can effectively reduce the cutting swing amplitude of grinding wheel. When adding 15% carbon fibre (φ7.6 μm, length of 100 μm) and 5% glass fibre (φ15 μm, length of 120 μm), the amplitude can be effectively decreased to 0.006 7 mm, which satisfies the production requirement.
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Key words:
- resin /
- ultrathin grinding wheel /
- superhard /
- integral /
- cutting swing
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