采用三维CAD／CAM技术探索毕业设计技术创新

本文分析了三维CAD和CAM技术的发展以及在企业和我校的应用现状,论述了用三维CAD取代二维CAD,实现CAD与CAM一体化的必然趋势。为使机械类专业本科教学满足和适应技术发展的要求,本文介绍了如何在专业模块课程和毕业设计中率先采用三维CAD和CAM技术,探索了毕业设计技术创新的认识,并展示了所取得的成效。     

桌面式PPCNC在《CAD/CAM》教学实践中的应用

随着数字化技术的迅速发展及其与制造业的紧密融合,CAD/CAM技术已成为机械工程师不可或缺的一项专业技能。很多工科院校已将《CAD/CAM》课程纳入本科教学的专业主干课群中。在课堂教学中引入桌面式PPCNC,实时展示数控加工过程,并建设开放式CAD/CAM技术平台和组建CAD/CAM技术实践小组,对凸显CAD/CAM技术的实践性、适应应用型人才的培养目标、提升课程教学质量、调动学生积极性、激发学生的自主能动性都是有益的探索和尝试。     

（CAD／CAM》课程的教学改革实践与探索

随着计算机技术的迅猛发展及其与设计、制造技术的相互结合与渗透．计算机辅助设计与制造作为先进制造手段之一在企业中得到普遍应用,很多工科大专院校已将该门课程列入专业基础课群中。通过对该课程进行的一系列教学改革措施,包括教学目标的修正、教学内容的整合、上机实验的调整以及教学方法的改进,可以在很大程度上调动学生积极性,并提升教学质量。     

基于虚拟技术的风扇叶轮凹模数控加工

以风扇凹模的加工为例,介绍在数控生产中运用CAD/CAM/CAE技术。选择不同的软件,发挥软件特点,特别是VERICUT软件在零件分析、加工仿真、参数优化等方面对生产特别有帮助。     

汽车保险杠注射模设计与制造

将部分型芯做成活动型芯与塑件一并顶出 ,利用人工将塑件取下的办法解决一些常规模具机构不能使用的问题。在模具的加工上 ,模具的成形部件是在三维中进行的实体设计 ,实现了设计 -编程 -加工的一体化     

《模具CAD/CAM》教育教学实践

为专业的发展对《模具CAD/CAM》课程进行了改革,结合专业的特点将教学大纲、教学内容和教学模式进行了相应调整。以杯子的注塑模设计与制造为案例进行了技能融合理论知识的教学实践。初步实践充分证明了课程改革对人才的培养和专业的发展具有积极意义。     

凸轮CAD/CAM软件的设计与开发--毕业设计中的教学与科技研发实践

通过ObjectARX技术对AutoCAD进行二次开发,实现凸轮的参数化设计.其中以圆弧代替直线逼近凸轮轮廓曲线,能自动生成相应的数控加工代码,以及实现仿真加工.     

Bodywork Boundaries: Power,Politics and Professionalism in Therapeutic Massage

In the last decade or so, complementary and alternative medicine generally, and therapeutic bodywork in particular, has been attempting to enhance its professional status and standing. By focusing upon the sex/gender dimensions of therapeutic massage and the wider historical, cultural and legal contexts in which such work is situated, this article explores and analyses the discursive formations and practices which women therapeutic massage practitioners deploy in the course of their attempts to achieve professional recognition. Drawing upon both primary and secondary data, it is argued that particular difficulties pertain in the case of the professionalization of therapeutic massage. Because of the widespread elisions between massage and sex work, women therapeutic massage practitioners have to mark out their professional distance from clients by deploying professional identifications and by using boundary‐setting devices or techniques which act to distinguish them from sex workers. This article explores these discursive formations and practices and argues that they act to create near‐intractable problems for women massage practitioners. The article concludes that, because these issues are not commonly acknowledged in much of the academic, policy or practitioner‐orientated literature, the neglect of sex/gender in the case of therapeutic massage has consequences not only for the professionaliza‐tion project of this particular therapeutic modality but for the ways in which various body work occupations in which women predominate tend to be seen as marginal and illegitimate ‘professions’.     

Aromatherapy and the Mixed Blessing of Feminization

ABSTRACT

Aromatherapy is a complementary and alternative medicine practice with several distinct lineages and with some uncertainty about the most appropriate way to professionalize. The historical feminization of smell and perfumes means that aromatherapy is culturally marked as a “feminized” practice. This feminization is a mixed blessing in relation to aromatherapy's attempts to advance itself as a discipline. While for many practitioners and clients the traditionally feminized associations of smell, such as its connections to emotions, memory, and the unconscious, serve as a source of value, for others, feminized languages and practices stand in the way of aromatherapy's advancement as a scientifically validated discipline.     

一次性卫生用品生产线调向装置圆柱凸轮机构CAD／CAM系统

结合摆动从动件圆柱凸轮机构在一次性卫生用品生产线上调向装置中的应用,针对圆柱凸轮设计和制造的技术 难题,根据摆动从动件圆柱凸轮轮廓曲面的方程,基于两重包络法,推导出非等径加工摆动从动件圆柱凸轮的刀具轨迹 方程。并根据布尔差运算原理和展成法加工原理,基于三维软件的二次开发接口,完成了圆柱凸轮的三维参数化精确建 模和CAD/CAM系统开发。应用结果表明该系统能准确加工出调向装置中的圆柱凸轮,且成本低。该系统的开发能有 效提高圆柱凸轮的设计和制造效率。