上海交通大学：《材料加工原理 Principles of Materials Processing》教学资源（课件讲稿）凝固和铸造 Solidification and casting_Metal Casting Technology（2）

先进材料疑固实验室 Laboratory of Advanced Materials Solidification 1896 1920 1987 2006 Metal Casting Technology(2) Dr.Mingxu Xia anced Mat 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY

1896 1920 1987 2006 Metal Casting Technology (2) Dr. Mingxu Xia

先进材料疑固实验室 Outline Laboratory of Advanced Materials Solidification Introduction Casting practice Design considering in casting Design for expendable-mold casting Major casting processes ory of Advanced M 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY

Outline Introduction Casting practice Design considering in casting Design for expendable-mold casting Major casting processes

先进材料疑固实验室 Types of parts made Laboratory of Advanced Materials Solidification Engine blocks Pipes Jewelry Fire hydrants 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY

Types of parts made Engine blocks Pipes Jewelry Fire hydrants

先进材料疑固实验室 Advantages of casting Laboratory of Advanced Materials Solidification Complex,3D shape Near net shape Low scrap Relatively quick process Intricate shapes © Large hollow shapes No limit to size Reasonable to good surface finish nced Materials Soll 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY

Advantages of casting Complex, 3D shape Near net shape Low scrap Relatively quick process Intricate shapes Large hollow shapes No limit to size Reasonable to good surface finish

先进材料疑固实验室 Processes Laboratory of Advanced Materials Solidification Sand Die Shell Centrifugal Plaster Squeeze 田 Ceramic Semi-solid Investment Single crystal Lost foam Directional solidification Pressure ⊕ Slush Vacuum Continuous ory of 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY

Processes Sand Shell Plaster Ceramic Investment Lost foam Pressure Vacuum Die Centrifugal Squeeze Semi -solid Single crystal Directional solidification Slush Continuous

先进材料疑固实验室 Metals processed by casting Laboratory of Advanced Materials Solidification Sand casting-60% Investment casting-7% Die casting -9% Permanent mold casting -11% Centrifugal casting-7% Shell mold casting-6% ory of vanced Materials Sol 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY

Metals processed by casting Sand casting – 60% Investment casting – 7% Die casting – 9% Permanent mold casting – 11% Centrifugal casting – 7% Shell mold casting – 6%

先进材料疑固实验室 Laboratory of Advanced Materials Solidification Major Casting Processes Sand casting Investment casting Lost-foam casting ⊕ Gravity die casting(permanent mould casting) ⊕ Low pressure die casting High pressure die casting ⊕ Centrifugal casting y of vanced Materials Sollc 熟 上游充通大学 SHANGHAI JIAO TONG UNIVERSITY

Major Casting Processes Sand casting Investment casting Lost-foam casting Gravity die casting (permanent mould casting) Low pressure die casting High pressure die casting Centrifugal casting

先进材料疑固实验室 Laboratory of Advanced Materials Solidification 1896 1920 1987 2006 SAND CASTING d Materials Sete 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY

1896 1920 1987 2006 SAND CASTING

先进材料疑固实验室 Sand Casting Laboratory of Advanced Materials Solidification Sand casting process makes use of sand as the molding material. The sand that is often used:silica,zircon or olivine. ory of vanced Materials Solidil 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY

Sand Casting Sand casting process makes use of sand as the molding material. The sand that is often used: silica, zircon or olivine

先进材料疑固实验室 Sand Casting Laboratory of Advanced Materials Solidification UPPER COMPLETED MOLD CASTING- HALF BROKEN OPEN TO REVEAL INTERIOR BAKED SAND SEGMENT MOLD SECTION A LOWER MOLD HALF MOLD SECTION B FIGURE 1-4 Sketch of sand-casting process as used in manufacture of a houschold radiator (From Taylor,Flemings,and Wulf.) 熟 上海充通大￥ SHANGHAI JIAO TONG UNIVERSITY

Sand Casting