信息化教学是高职院校教学改革的趋势,文章主要介绍了《新能源汽车驱动电机与控制技术》课堂教学现状与不足、信息化技术应用的意义、信息化教学应用实例以及信息化教学效果与反思.

精品在线开放课程引发了教育观念、教学方式等方面的深刻变化,是近年来高校教学改革与专业建设的重要内容.在总结精品在线开放课程建设与实施经验的基础上,对课程建设中总体设计、资源建设、教学实施等内容进行探究,为开展在线开放课程建设的教师提供了一定参考.

在分析壁炉烟囱生产难点的基础上,通过焊接小样试验,烟囱口部变形计算分析,制定了合理的冲压与焊接生产工艺,最终成功地应用于产品生产.

以某工业产品为例,应用3D打印技术加工铸造蜡型,并用熔模铸造制造出不锈钢产品.重点介绍了该打印材料的性能和设备参数、以及熔模铸造的工艺过程,实现了3D打印技术与铸造的完美结合,所用材料符合污染小、节约能源的绿色环保制造理念,符合现代制造业的最新发展趋势和市场经济的发展要求.

焊接技术与自动化骨干专业建设以创新发展行动计划为契机,着力创建现代职教新体系,强化师资队伍、课程与教材建设,重点培育工匠人才.结果表明,打通职业教育上升通道"3+2"、高职、高职本科,形成现代职教新体系,教学团队综合素质和能力显著提升,课程与教材建设强力突围,为装备制造企业输送高素质高技术技能型工匠人才,有力助推了区域经济发展.

在任务驱动教学中采用基于结果的逆向教学法,打破传统的教学思路,从任务结果入手,激发学生学习的好奇心,明确学习的方向性,使学习更具主动性.评价体系改革能够引导学生积极投入学习,发挥学习的主动性和创造性,提升自我认知能力.

3D打印技术作为一种新兴的高新技术,近一段时间以来受到了社会的广泛关注.文章简要介绍了3D打印技术的工作原理、主流应用技术以及其所依托的关键技术,并概括了3D打印技术目前的发展应用现状和未来的发展前景.

为缩短零件制造周期,节约成本,提高设计效率,从成型性、工艺性和成本角度考虑,利用CAE软件对汽车发动机支架铸件进行工况静力学分析,校核发动机支架的强度,从而改进该零件的结构设计,改进后的结构满足强度要求.

以国内高职院校试办高职本科的调研为基础,分析当前国内高职院校试办本科的规模、模式、管理方法等基本情况,提出对高职院校试办高职本科的一些看法和思考.

Aimed at the problems of equipment corrosion in caustic soda industry,five types of Ni-Cu cast iron were developed and their corrosion rates were tested.The results show the corrosion resistance property can be improved clearly with the increase of Ni content,the corrosion resistance of N4 and N5 is higher than the others.

Aimed at the corrosion problem of facilityes in caustic soda industry,five types of RE-Ni-Cu cast iron were developed,and their corrosion rate was tested.The results show that the corrosion resistance of the cast iron with the suitable RE content can be improved clearly.However,it will be decreased with excessive RE content.

在分析《冷冲压模具设计》课程教学现状与存在问题的基础上,进行“教、学、做”一体化课程改革研究；采用案例教学方式,按照模具设计步骤重新序化教学内容,组织实施教学,取得了良好的教学效果.

A series of Gd3-xCuxAl2(x=0,0.1,0.2,0.3) alloys were prepared in a high-frequency floating furnace.The effect of minor substitution of Gd by Cu on the magnetocaloric effects of Gd3Al2 alloy was investigated.The results show that the structure of Gd3-xCuxAl2 alloys is the same of Zr3Al2;the maximum adiabatic temperature of Gd3-xCuxAl2 alloys decline and the Cure temperatures increase with the increase of the content of Cu under a magnetic field of 1.5 T.It was revealed that minor addition of Cu can change the magnetocaloric effects of Gd3Al2 alloy.

本文以模具设计与制造专业为例,描述了"工学结合、理实一体"课程体系的构建过程,介绍了专业的一体化课程体系以及其在实施中的问题与思考。

Aiming at poor working life of die and biggish asymmetry of wall thickness of cup-shaped parts in warm extrusion forming process,the main reasons for the two questions were analyzed,then the improving measures were put forward.The results of actual verification show that,the new technology can effectively reduce extrusion force by 45%,elevate the temperature of die by 15% and control the difference between wall thickness of cup-shaped parts,prolong the work life of die and increase the quality of workpieces.

The influences of various punch shapes of backward extrusion to metal flow,extrusion force and punch temperature rise were analyzed through numerical simulation.The influence of punch shapes to the extrusion process was discussed.The analysis results could provide reference to the optimal design of extrusion punch shape.

The influences of technological parameters in warm extrusion of cup-shaped parts,such as extrusion temperature,friction condition,billet shape and size,on the extrusion force,die life and product quality were analyzed quantitatively through simulation analysis and experimental verification.The study results could provide reference for the determination of appropriate technological parameters.

Different kinds of bending forming technology and equipment of the R clip were designed by applying the system analysis design method.Through analysis and comparison,formation scheme with reasonable function,high efficiency and convenient maintenance was confirmed which had a reference value for this kind of part production.

By analyzing the material properties of cup-shaped parts produced by warm extrusion,this paper puts forward the influence of warm extrusion technology on materials structure and properties.The structure texture of the cup-shaped parts produced by warm extrusion is continual.Compared with the raw materials,the hardness,tough- ness and grain fineness are improved greatly.As a result,this technology has practical value.

针对杯形件温挤生产中挤压凸模寿命过低这一问题,从分析导致该问题的主要因素入手,对现行工艺中挤压凸模的润滑方式进行了改进,并对改进方式进行了计算机模拟分析和实验验证.结果表明:采用改进润滑方式后,挤压力约降低30%,挤压凸模的温升下降15%左右,从而有效地改善了凸模的工作条件,实现挤压凸模寿命的提高.