Abstract:
본 발명은 마찰교반 접합방법 및 이를 이용한 접합 구조체에 관한 것이다. 본 발명은 마찰교반 접합을 위해 서로 밀착된 접합재의 일면에 삽입홈을 형성하는 단계; 삽입홈에 접합 물질을 삽입하는 단계; 접합 물질을 덮도록 상기 접합재 일면에 테이프를 부착하는 단계; 삽입홈이 형성된 접합재 일면의 반대면을 마찰교반하는 단계를 포함한다. 이와 같은 본 발명에 의하면, 접합부의 복합소재 및 합금화가 가능한 마찰교반 접합방법을 이용하여 접합 시에 삽입된 접합 물질이 외부로 유출되지 않고 접합부의 결함 또한 방지할 수 있다.
Abstract:
PURPOSE: A friction stir process method capable of producing composition or alloy and composition or alloy produced by said method are provided to produce a composition or an alloy from a desired portion of a material. CONSTITUTION: A friction stir process method capable of producing composition or alloy comprises a step of generating a groove in a structure(100); a step of sticking a tape(130) on the filled groove after filling the groove with a different material(120) from the structure; a step of turning over the structure for the taped portion to face down; a step of performing a friction stir process on the opposite side of the taped portion along the groove on the structure. The tape may be made of the same material of the structure or a similar material of the structure. A step of removing burr on the surface of the structure may be included following the friction stir process.
Abstract:
PURPOSE: A friction stir welding method and a coupling structure using the same are provided to prevent the leakage of a filler material and defects in a weld zone. CONSTITUTION: A friction stir welding method comprises the steps of: forming an insertion groove(14) on one side of welded materials(10) butte against each other, inserting a filler material to the insertion groove, attaching tape(30) to one side of the welded materials to cover the filler material, and friction-stir-welding the opposite side of the welded materials to the insertion groove, wherein the filler material is different from the welded materials and the tape is the same material as the filler material.
Abstract:
PURPOSE: A friction stir welding apparatus and method for controlling the maximum temperature and cooling speed of a junction part are provided to control the phase transition of welded materials by stopping the operation of a cooler and operating a resistance wire to control the cooling speed of the welded materials after welding. CONSTITUTION: A friction stir welding apparatus comprises a tool(10), a backing plate(30), a contact plate(32), and a cooler(38). The tool is inserted to a junction part between welded materials(20,22) and implements friction stir welding on the welded materials. The backing plate supports the welded material. The contact plate is inserted to the backing plate. The cooler is inserted to the backing plate.
Abstract:
본발명은마찰교반접합장치및 방법에관한것이다. 본발명에서는제 1부재및 제 2부재가테이블에고정된상태에서테이블의회전축에대해기울어진상태로툴을배치하여초기성형위치를조정한다. 그리고, 툴을회전시켜제 1부재및 제 2부재의접합부에삽입한후에, 테이블을회전시킨다. 다음으로, 제 1부재및 제 2부재의접합시작점에덧댐부재를고정시킨다. 그리고, 툴이접합시작점까지접합부를접합한후에, 덧댐부재에핀홀을형성하게된다. 이와같은본 발명에의하면, 접합재료, 조건등에따라툴의각도를조절하는것이용이한효과가있다. 또한, 부재에핀홀에의한손상이가지않고, 핀홀을제거하기위한용접, 절삭등의공정이삭제되므로전체공정이간소화되는효과가있다.