Heat exchange and temperature field Sand mold heat exchange Metal mold heat exchange Solidification mode of castings Concept of casting simulation (Virtual Manufacturing)

Solidification  Definition  Thermo performance Conventional Nucleation Theory  Homogeneous nucleation  Heterogeneous nucleation

Heat transfer Mass transfer Commonalities among phenomena

Brief introduction Momentum transfer Energy transfer

Viscosity of liquid metal Surface and interface of liquid metal Fluidity of liquid metal Other properties of liquid metal

State of matter Brief introduction to liquid metal The structure of liquid metal

Macro & Micro thermodynamics Basic concept of statistical thermodynamics Entropy S Enthalpy H

Materials & Processing Human civilization and materials processing Modern materials processing Why solidification is important? What is solidification & casting? Course structure

一、 问答题(4 小题,共 19.0 分) (6 分)[1]说明前角的大小对切削过程的影响？ (5 分)[2]无心磨床与普通外圆磨床在加工原理及加工性能上有那些区别？ (5 分)[3]在车床上镗孔时，若主轴回转运动和刀具的直线进给运动均很准确，只是它们在水平面内或垂直面上不平行，试分析加工后将产生什么样的形状误差？

通过本章的学习,应当掌握经济周期类型、 加速原理和乘数—加速数模型,掌握哈罗德—多马经济増长模型、 新古典经济増长模型,掌握库兹涅茨对经济增长因素的分析和库 兹涅茨的←倒U字假说”,掌握罗默的新増长理论的基本观点