用扩散焊进行多层不锈钢打印喷头的实体制造  

Laminated Object Manufacturing for Ink-jet Printing Head of Multilayer Stainless Steel By Diffusion Bonding Process

作　　者：张赋升[1] 孙福[1] 王艳芳[2] 熊江涛[1] 李京龙[1] 

机构地区：[1]西北工业大学材料学院,陕西西安710072 [2]陕西工业职业技术学院,陕西咸阳712000

出　　处：《热加工工艺》2006年第7期26-28,共3页Hot Working Technology

摘　　要：探索了将真空扩散焊技术应用于分层实体制造(LOM),并对多层薄壁不锈钢做造型材料的喷墨打印喷头的分层实体的扩散焊工艺进行了研究。表明,焊后各类变形是主要的缺陷。变形类型有一侧开口翘起变形、宏观翘曲变形、表面起皱与局部塌陷变形等。焊接温度由于决定了焊合率而起着决定性作用。高的焊合率使变形控制成为可能。采用焊后冷却过程中加顶锻压力的方法,可以消除残余应力,抑制宏观翘曲变形。Diffusion bonding was used for laminated object manufacturing （LOM）. LOM for ink-jet printing head of multilayer stainless steel by vacuum diffusion bonding was studied experimentally. It shows that various thermal deformations occurred as main defects in the process, such as buckling deformation,surface wrinkling and carving deformation. The results show that the bonding temperature plays key role in the process because of its effects on welding rate, in which adequate welding rate makes the deformation controllable; whereas the pressure and its acting mode adjusts the deformation. Residual thermal stress and apparently suppress the macro warping deformation can be eliminated by instantaneously adopting upset pressure during cooling down can eliminate.

关 键 词：真空扩散焊 分层实体制造 数码喷射印花 

分 类 号：TG453.9[金属学及工艺—焊接]