韩变枝 王栋 杨胜强

摘  要：特种加工课程具有开拓新工艺思路，解决工艺难题及培养学生对各种加工知识的综合运用能力和创新意识的功用，对社会的进步起着非常重要的作用。针对特种加工课程教学中存在的问题，分析课程特点和典型的PBL教学模式，将该教学模式引入特种加工教学中，提出了面向任务的PBL新型教学模式，构建了面向任务的PBL特种加工技术课程的教学模式。实践运行表明，能够解决教学中的问题。开展基于PBL专业课程教学改革，可有力推动课堂教学革命，有效提升教学质量，激发学生的求知欲和学习兴趣，提高学生的自主学习和解决问题的能力，促进了创新意识和团体合作精神的养成。

关键词：PBL教学模式;特种加工;教学设计

中图分类号：G642       文献标志码：A         文章编号：2096-000X（2021）09-0157-05

Abstract：The Non-traditional Machining Course plays a very important role in the progress of the society， which has the function of developing new process ideas， solving process problems and cultivating students' ability and innovation consciousness of various mechanical knowledge. Aiming at the existing problems in teaching the special processing course， the characteristics of the course and the typical PBL teaching mode is analyzed and the typical PBL teaching mode is applied to teaching the Non-traditional Machining in the paper. The author puts forward the new task-oriented PBL teaching mode and constructs the task-oriented PBL teaching mode of the special processing technology course. The practice shows that it can solve the problems in teaching the Non-traditional Machining Course. Teaching reform based on PBL can effectively promote teaching revolution of classroom， effectively improve teaching quality， stimulate students' thirst for knowledge and interest in learning， improve students' ability to study independently and solve problems， and promote the training of innovation consciousness and spirit to cooperate with the team members in the teaching professional curriculums.

Keywords： PBL teaching model; non-traditional machining; teaching design

隨着生产力和科技工业的发展，市场需求对机械产品的比强度、耐腐蚀、耐高温、性价比等方面提出了更高的要求，导致出现所加工的材料越来越硬，结构越来越复杂，加工精度越来越高，传统的加工方法难以满足要求，特种加工就是在这种历史条件下出现的，也叫非传统加工。特种加工技术是发展制造强国的重要技术手段，在国防科技及生产实践中得到了广泛应用，也是衡量尖端制造和国防科技创新能力的关键指标，对我国科技和经济社会发展意义重大。对于大学本科，开设特种加工，目的在于使学生对加工工艺有新认识，开拓新工艺思路，解决工艺难题，培养学生对各种加工知识的综合运用能力和创新意识[1-2]。……