复杂刀具真空热处理工艺交叉混合推理机制的研究
Study on Cross Hybrid Reasoning Mechanism of Vacuum Heat Treatment Process for Complex Tool
杨友华1, 刘献礼1, 韩海英1, 于继龙2
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作者单位：(1. 哈尔滨理工大学 机械动力工程学院, 黑龙江 哈尔滨 150080; 2. 哈尔滨第一工具制造有限公司, 黑龙江 哈尔滨 150020)
中文关键字：复杂刀具； 真空热处理； 交叉混合推理； 工艺参数
英文关键字：complex tool; vacuum heat treatment; cross hybrid reasoning; process parameters
中文摘要：以精密复杂刀具真空热处理工艺为研究对象，针对刀具几何参数的多变性、真空热处理工艺参数的复杂性和工艺设计特点，提出了全新的交叉混合推理方法。 详细讨论了系统推理机结构构建、 交叉混合推理机制、推理流程及属性判断，提高了专家系统推理的准确性和灵活性，有效避免了实例推理与规则知识的不足。同时采用交叉混合推理对M2齿轮刀具的真空热处理工艺方案进行研究。
英文摘要：Taking vacuum heat treatment process for precise complex tool as a research object, a brand-new method of cross hybrid reasoning was put forward according to changefulness of tool geometric parameters, process parameters complexity of vacuum heat treatment and its characteristic of the process were designed. Structure construction of system reasoning machine, mechanism of cross hybrid reasoning, reasoning flow and attribute judgment were discussed in detail in order to improve the accuracy of expert system reasoning and its flexibility, besides, the deficiency of case-based reasoning and rule knowledge were effectively avoided. Meanwhile, process scheme of vacuum heat treatment on M2 gear cutter was carried out using cross hybrid reasoning.