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玻璃磨削中切削力和金刚石刀具磨破损的实验研究
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摘要
本文对玻璃的高效加工技术进行了研究,首先对目前玻璃加工过程中的现状进行了分析,分析了存在的问题,提出了高效加工技术的定义、优势等内容。然后又通过实验对玻璃加工过程中的切削力和金刚石刀具的磨破损进行了进一步的研究。
     本文的研究是在意大利硬脆材料数控加工中心SPEED Y2000上进行的。首先进行的是玻璃加工过程中的切削力研究,分别选取了切削速度、进给速度、背吃刀量三个因素进行实验研究,每个因素选取三个水平。通过编制正交实验,利用极差分析对玻璃加工过程中的各切削力分量与各个切削参数之间的关系进行研究,另外综合考虑切削力和切削效率对切削参数进行优化,经过优化加工效率得到了大幅度提高。最后利用回归分析建立了各个切削力的数学模型,有利于指导实际生产和实际工艺参数的制定。
     在对金刚石刀具磨破损的研究中,实验参数的选取与切削力实验部分的参数相同。因为1/4圆弧刀具各个点的直径都不同,这就导致在加工过程中不同直径处的背吃刀量会有不同,因此,针对所用刀具的特殊性,制定了实验方案。
     在刀具磨破损的实验研究中,刀具的磨损采用刀具的磨损率进行衡量,即在所给的参数下,刀具每转一转刀具直径的变化量。首先通过极差分析对刀具磨损率与各个切削参数之间的关系进行了研究,分析了刀具磨损率随着各个切削参数的变化趋势和各个切削参数对刀具磨损率影响的主次关系。然后从量化方面对刀具磨损率与各个切削参数之间的关系进行了分析,通过回归分析建立刀具磨损率的数学模型。
     本课题主要研究目标就是降低生产成本、提高效率,对玻璃的高效加工技术进行研究。通过本课题的研究,不仅能够实现既定的目标,而且对实际的生产也有一定的指导作用。
This paper research the highly effective process technology to the glass. First, the paper analyzed the present situation of glass processing, analyzed the existence problems, proposed the definition and the superiority of the highly effective process technology and so on. Then the cutting force of processing glass and the wear of the diamond cutting tool are researched through the experiment.
     What this paper researched is carried on the hard-crisp material machining SPEED Y2000. First, the paper researched the cutting force of processing glass, selected three factors to conduct the experimental study, the cutting velocity, the feed rate, the cutting depth. In the experimental study, each factor selected three levels. Through the establishing the orthogonal experiment, the paper studied the relationship between the cutting force and the cutting parameter with the method of the extremely analysis, optimized the cutting parameter with consideration of the cutting force and the cutting efficiency carry. The efficiency had a greatly improvement after the optimization. Finally the paper established the mathematical model of each cutting force though the regression analysis, which is advantageous in instructing the actual production and making the actual parameter.
     In the research of the diamond cutting tool wears, the experiment parameter is as same as the parameter in the cutting force experiment. Each spot diameter is different on the 1/4 circular cutting tool, which will cause the different cutting depth on the different diameter during the processing. Therefore, in view of the cutting tool's particularity, we made the experiment plan.
     In the research of the diamond cutting tool wears, the wear of the cutting tools is weighted though the wear rate of the cutting tool, namely, the cutting tool diameter change each revolution under the given parameter. First the paper studied the relationship between the tool wear and the cutting parameter with the method of the extremely analysis, and analyzed the tendency of the cutting tool wear along with the cutting parameter and the relationship between the tool wear and each cutting parameter. Then the study is carried out on the quantification level, established the mathematical model of the wear rate of the cutting tool.
     This paper mainly aimed at reducing the production cost, improving the efficiency, studying the glass highly effective process technology. Through the research, we can not only achieve the objectives, but also instruct the actual production.
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