公开(公告)号：DE60116706T2

公开(公告)日：2006-08-17

申请号：DE60116706

申请日：2001-04-25

Applicant: ALCOA INC

Inventor： SPINELLA DONALD J ,  KOSTIE CHARLES J

IPC: B23K11/11 ,  B23K11/18 ,  B23K35/02 ,  B23K35/04

Abstract: A modification of the electrode geometry for resistance spot welding of aluminum. A ratio of the surface area of the weld nugget to the surface area of the electrode face is about 0.75 to about 1. The diameter of the electrode face is smaller than the industry recommended size and which provides higher current density and reduces the amount of power needed for welding aluminum.

公开(公告)号：CA2938420C

公开(公告)日：2020-03-10

申请号：CA2938420

申请日：2015-02-02

Applicant: ALCOA INC

Inventor： SPINELLA DONALD J ,  BERGSTROM DANIEL

IPC: B23K11/20

Abstract: An apparatus and method for fastening dissimilar materials like steel, plastic and aluminum. A resistance welding fastener having multiple layers may be used with or without a sealant. The fastener may be used to form an aluminum covered steel laminate via a hemming pattern of attachment. The fastener may have a solid shaft or have an extended reach and have features for interacting with the welding electrode. A variety of electrode tips may be employed to cooperate with the fastener.

公开(公告)号：AU2008296039B2

公开(公告)日：2014-01-23

申请号：AU2008296039

申请日：2008-09-08

Applicant: ALCOA INC

Inventor： SPINELLA DONALD J ,  BURG JAMES T ,  COBES JR JOHN W ,  STOL ISRAEL

IPC: B23K20/12

Abstract: Portable friction stir welding apparatus having a crawler (200) which supports a motor (308) for rotating a Friction Stir Welding tool (213) and is coupled to a drive mechanism for urging the crawler along a predefined weld path on work pieces. The crawler can comprise one member (201) or a set of two or three physically separated members (201, 202, 203) each rotatably coupled to the friction stir welding tool. When one member is used to make a weld, it is located on top of the work pieces. When two members are used to make a weld, one member is located on the top of the work pieces and the second member is located on bottom of the work pieces. When three members are used to make two welds simultaneously on an upper work piece and a lower work piece, one member of the crawler is located on the top surface of the upper work piece, a second member is located between the two work pieces, and a third member is located on the bottom surface of the lower work piece. The friction stir welding tool for making the weld is rotatably coupled to each member and restricts axial displacement of the physically separate members relative to each other. The members are adapted to engage rails on the work pieces which provide at least one of guiding, alignment, fixturing, torque compensation for the members as the friction stir welding tool is rotated and the crawler is moved along a joint.

公开(公告)号：CA2697428A1

公开(公告)日：2009-03-12

申请号：CA2697428

申请日：2008-09-08

Applicant: ALCOA INC

Inventor： BURG JAMES T ,  STOL ISRAEL ,  SPINELLA DONALD J ,  COBES JOHN W JR

IPC: B23K20/12

Abstract: Portable friction stir welding apparatus having a crawler (200) which supports a motor (308) for rotating a Friction Stir Welding tool (213) and is coupled to a drive mechanism for urging the crawler along a predefined weld path on work pieces. The crawler can comprise one member (201) or a set of two or three physically separated members (201, 202, 203) each rotatably coupled to the friction stir welding tool. When one member is used to make a weld, it is located on top of the work pieces. When two members are used to make a weld, one member is located on the top of the work pieces and the second member is located on bottom of the work pieces. When three members are used to make two welds simultaneously on an upper work piece and a lower work piece, one member of the crawler is located on the top surface of the upper work piece, a second member is located between the two work pieces, and a third member is located on the bottom surface of the lower work piece. The friction stir welding tool for making the weld is rotatably coupled to each member and restricts axial displacement of the physically separate members relative to each other. The members are adapted to engage rails on the work pieces which provide at least one of guiding, alignment, fixturing, torque compensation for the members as the friction stir welding tool is rotated and the crawler is moved along a joint.

公开(公告)号：EP3013512A4

公开(公告)日：2017-03-08

申请号：EP14817631

申请日：2014-06-26

Applicant: ALCOA INC

Inventor： SPINELLA DONALD J ,  BERGSTROM DANIEL

IPC: B23K11/20 ,  B23K11/00 ,  B23K11/18 ,  B23K35/02 ,  B23K35/28 ,  F16B19/00 ,  F16B37/00

CPC classification number: B23K11/0066 ,  B23K11/18 ,  B23K11/185 ,  B23K11/20 ,  B23K35/0255 ,  B23K35/0288 ,  B23K35/28 ,  B23K35/284 ,  B23K35/286 ,  F16B5/04 ,  F16B5/08 ,  F16B37/061

Abstract: An apparatus and method for fastening dissimilar metals like steel and aluminum utilizes a steel rivet and a spot welding machine. The rivet and metals are stacked and the heat from the welder's electric current softens the lower melting point aluminum allowing the rivet to penetrate the aluminum and weld to the steel layer. The fastener may be used to join stacks with several layers of different materials and may be used to apply a threaded socket or stud made from steel or titanium to an aluminum or magnesium alloy structure. Layers of non-conductive materials like plastic and ceramics may also be affixed to a conductive layer using the fastener made from a compatible material that extends through a pilot hole.

Abstract translation: 用于紧固诸如钢和铝的不同金属的装置和方法利用钢铆钉和点焊机。 铆钉和金属被堆叠，来自焊机电流的热量使较低熔点的铝软化，允许铆钉穿透铝并焊接到钢层。 紧固件可以用于连接具有多层不同材料的堆叠，并且可以用于将由钢或钛制成的螺纹插座或螺柱施加到铝或镁合金结构。 诸如塑料和陶瓷的非导电材料层也可以使用由穿过引导孔延伸的相容材料制成的紧固件固定到导电层上。

公开(公告)号：CA2947720C

公开(公告)日：2019-09-10

申请号：CA2947720

申请日：2015-05-01

Applicant: ALCOA INC

Inventor： HUANG WEI ,  GLOBIG MICHAEL ,  SPINELLA DONALD J ,  VEMURI K RAO

IPC: G01N21/95 ,  G01B11/28

Abstract: An apparatus and method for measuring broken spot weld artifacts has a framework for supporting a light and a plurality of cameras for acquiring controlled images of a specimen with minimal distortion and parallax. The framework holds the specimen flat and in a reproducible position, controlling movement while imaging. The image data is received in a computer programmed with image processing software capable of isolating and measuring the artifacts. A calibration standard is used to correct for aberrations.

公开(公告)号：CA2916299A1

公开(公告)日：2014-12-31

申请号：CA2916299

申请日：2014-06-26

Applicant: ALCOA INC

Inventor： SPINELLA DONALD J

IPC: B23K11/11

Abstract: An apparatus and method for fastening dissimilar metals like steel and aluminum utilizes a spot welding machine. The metals are stacked with an aluminum body captured between steels. Heat from the welder's electric current softens the lower melting point aluminum allowing an indentation of the steel layer to penetrate the aluminum and weld to an opposing steel layer. The process may be used to join stacks with several layers of different materials and for joining different structural shapes.

公开(公告)号：CA2859214A1

公开(公告)日：2013-06-27

申请号：CA2859214

申请日：2012-12-20

Applicant: ALCOA INC

Inventor： SPINELLA DONALD J

IPC: B23K11/11 ,  B23K11/20 ,  B23K11/30

Abstract: An apparatus is provided including: at least one first sheet comprising a first material; at least one second sheet comprising a second material, wherein the first material comprises at least one of: a thermal conductivity and an electrical conductivity that is at least 10% lower than that of the second material; and a joint comprising at least one resistance spot weld (RSW), wherein the first sheet is at least about 1.5 times the thickness of the second sheet. Methods are also provided.