摘要
目前的制图教学中,部分学生认为半剖视图是对机件四分之一剖切形成,视图中的剖切符号仅表示剖切面的位置,从而导致错误的标注。错误发生的原因一部分是学生没有很好的理解概念,另一部分是国家制图标准中有关剖视图的表述不确切。教学中教师应该引导学生理解概念,并对其准确解释,从而提高工程图样表达的正确性和准确性。
In Mechanical Drawings, some students misunderstand half- section view only as a quarter sections cutting. They also misunderstand the cutting labels in section only marks the position in section instead of cutting range. Those mistakes lie in misunderstand of cutting concepts and the inexact description of concerned labels of section view in national drawing standard. Some conception should be understudied and explained correctly during teaching by teacher, thus improving the correctness and exactness in description of engineering drawings.
出处
《九江职业技术学院学报》
2010年第3期60-61,共2页
Journal of Jiujiang Vocational and Technical College
关键词
半剖视图
制图标准
工程图样
half- section view, drawing standard, engineering drawings
