德尔福英文笔试题目分享

德尔福英文笔试题目分享：
1,What is metal clading?
2,Briefly describe what is blanking(cutting),forming,coining and embossing　in  stamping process.
3,What is the purpose of adding glass fiber to thermoplastic material?
4,In contrast with metal and thermoplastic material,which has a  higher　coefficient of thermal　expansion(CTE).
5,The most suitable material for a integral hinge design(typical  plastic　thickness=0.25 to 0.5mm at hinge)
6,Can a bending load makes bothpressive and tensile stress in a member?
7,What is the design criteria used in plastics catch/snap?
8,What is FEA?
9,What is the deflection equation of a cantilever beam fixed at one edge?
10,Why is natural frequency important in vibration analysis?