Abstract:
A manipulator device such as a robot arm that is capable of increasing manufacturing throughput for additively manufactured parts, and allows for the manipulation of parts that would be difficult or impossible for a human to move is described. The manipulator can grasp various permanent or temporary additively manufactured manipulation points on a part to enable repositioning or maneuvering of the part.
Abstract:
An additive manufacturing system including a two-dimensional energy patterning system for imaging a powder bed is disclosed. Improved optical systems supporting beam combining, beam steering, and both patterned and unpatterned beam recycling and re-use are described.
Abstract:
A method of welding difficult to weld aluminum alloys using a laser welding device with at least 4 kilowatts of power operable at a speed of from about 40 millimeters per second to about 160 millimeters per second with a spot size of about 250 to about 600 microns focused at the surface of the aluminum pieces, without the need for shielding gas or filler wire, and the parts made thereby which are of suitable strength and properties to use as lightweight reinforcement structures, particularly in vehicle interior structures.
Abstract:
A method and apparatus for permanently joining two or more metallic vehicle frame components using magnetic impulse welding techniques. The vehicle frame may include a pair of similar or dissimilar tubular side rail members in multiple sections joined together by a plurality of transversely extending tubular of "C" or "U" shaped cross members. A plurality of similar or dissimilar material brackets are joined to the side rails and/or cross members to facilitate the attachment of other portions of the vehicle to the vehicle frame. These components are joined via an overlap joint between two individual side rail sections, a cross member section and a side rail section, or a bracket and a side rail section or a cross member section. The first component and the second component, if tubular side rails, are sized so that they may be disposed telescopically with clearance. Similarly, the first component and second component, if a cross member/side rail, a bracket/cross member, or a bracket/side rail combination are sized and/or positioned so that some clearance exists between the components. An electromagnetic coil is provided for generating a magnetic field that causes the first component and the second component to move toward one another. Portions of the electromagnetic coil are disposed on either side of the side rail sections. A first end of the electromagnetic coil is connected through a switch to a first side of a capacitor, while a second end of the electromagnetic coil is connected directly to a second side of the capacitor. A source of electrical energy is provided for selectively charging the capacitor to store a quantity of electrical energy. By closing the switch, electrical energy is passed from the capacitor through the electromagnetic coil. Consequently, an intense electromagnetic field is generated about the first and second components. This force causes the first and second components to move toward each other at great velocities, when they meet, the large pressures produced on impact cause the first and second components to weld or molecularly bond.
Abstract:
PURPOSE: A method for manufacturing the side frame of a refrigerator door is provided to form the diameter of a welding electrode contact with a frame exposed outside to be larger than the diameter of other welding electrode not exposed inside, thereby preventing the generation of a welding mark on at least a part exposed outside. CONSTITUTION: A side frame of a refrigerator door includes a first and a second frame (10,20), and a fastening part (50). The frames respectively provide a first and a second assembling part (30) on which the front and the rear member (110,120) of the door are assembled. The fastening part is integrated with or is separately welded on the first frame, and the cover members (130) of the door are assembled on the fastening part. The frames are integrally welded each other through a roll forming process or a press processing process with steel material. The flat parts of the frames are mutually spot-welded, and at least one component assembling part is integrated with the second frame.
Abstract:
차량 고박 금물의 절결부 사이의 측면 하부 용접 개소를 자동 간헐 용접 가능하도록 절결부의 위치를 관리한 차량 고박 금물과, 용접 부착 공정을 대폭 저감하는 그 부착 방법이 제공되며, 평강재로 이루어지고 직사각형 단면을 갖는 각봉 형상의 차량 고박 금물로서, 선박의 바닥면상에 용접으로 부착되는 쪽에 등피치로 복수의 절결부가 미리 가공되고, 바닥면에 부착된 상태에서 절결부가 바닥면과의 사이에, 탑재한 차량을 고박하기 위한 고박 후크를 거는 걸이부를 형성하는 차량 고박 금물에 있어서, 복수의 절결부는 차량 고박 금물의 한쪽의 단면으로부터 가장 가까운 절결부의 위치까지의 거리, 이웃하는 절결부의 위치의 각 피치, 및 한쪽의 단면으로부터 가장 먼 절결부의 위치까지 거리의 각각을 소정의 치수 공차에 들게 표시한 표준 스케일을 이용하여, 차량 고박 금물의 가공 위치를 위치 결정하는 것에 의해 가공되는 차량 고박 금물과 그 부착 방법이 제공된다.