公开(公告)号：US20180022038A1

公开(公告)日：2018-01-25

申请号：US15546547

申请日：2015-01-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jing Zhang ,  David S. Yang ,  Shawn Deng

IPC: B29C65/00 ,  B32B15/088 ,  B32B15/18 ,  B29C65/16

CPC classification number: B29C66/026 ,  B29C65/1658 ,  B29C65/44 ,  B29C66/1122 ,  B29C66/43 ,  B29C66/71 ,  B29C66/72143 ,  B29C66/7392 ,  B29C66/742 ,  B29C66/74283 ,  B29C66/836 ,  B32B15/088 ,  B32B15/18 ,  B32B2255/06 ,  B32B2255/205 ,  B32B2262/106 ,  B29K2077/00 ,  B29K2067/003 ,  B29K2069/00 ,  B29K2075/00 ,  B29K2067/00 ,  B29K2033/08 ,  B29K2033/12 ,  B29K2077/10

Abstract: A method of attaching a thermoplastic-based workpiece and a metal workpiece involves the use of a metal reaction coating. The metal reaction coating is applied over a base metal substrate of the metal workpiece such that the metal reaction coating faces and contacts the thermoplastic-based workpiece when the two workpieces are assembled in overlapping fashion. To attach the workpieces at their faying interface, an energy source such as, for example, a laser beam or an electric arc, is directed against the metal workpiece to create a zone of concentrated heat that at least warms up the metal reaction coating and melts a portion of the thermoplastic-based workpiece. Such heated activity at the faying interface promotes interfacial chemical bonding between the thermoplastic-based workpiece and the metal workpiece that contributes to an enhanced attachment between the workpieces.

公开(公告)号：US11034212B2

公开(公告)日：2021-06-15

申请号：US16069374

申请日：2016-03-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yan Li ,  Wenshui Wang ,  Xiaolin Zhu ,  Jing Zhang

IPC: B60H1/00 ,  B60H1/24 ,  B60H3/06

Abstract: Methods and apparatus are provided for controlling an air quality within a passenger cabin. The method includes outputting one or more control signals, by a processor, to activate a motor to generate an airflow stream for observation by a fine particulate matter sensor, the fine particulate matter sensor generating sensor signals based on the observation; determining a concentration level of fine particulate matter in the airflow based on the sensor signals; and outputting one or more control signals to an air quality system associated with the passenger cabin to generate an airflow into the passenger cabin based on the determined concentration level, the airflow into the passenger cabin flowing through a fine particulate matter filter.

公开(公告)号：US20170114252A1

公开(公告)日：2017-04-27

申请号：US15302115

申请日：2014-04-09

Applicant: Xin YANG ,  GM Global Technology Operations LLC

Inventor： Xin Yang ,  Jing Zhang ,  Yongqiang Li ,  Jianfeng Wang ,  David Yang

IPC: C09J11/04 ,  C08K7/18 ,  C09J5/06

CPC classification number: C09J11/04 ,  C08K3/08 ,  C08K7/18 ,  C09J5/00 ,  C09J5/06 ,  C09J2205/102 ,  C09J2400/163

Abstract: A bonding system comprising a first substrate, a first substrate (110) having a first contact surface (115) including a plurality of grooves (140), a second substrate (120) having a second contact surface (125), an adhesive (200) in contact with the first contact surface (115), and the second contact surface (125), and a plurality of solder balls (300) positioned at least partially in the adhesive (200) and in contact with the first contact surface (115). A bonding method comprising applying, on a first contact surface (115) including a plurality of grooves (140) an adhesive (200), positioning, at least partially in the adhesive (200), each of a plurality of solder balls (300), connecting, to a portion of the adhesive (200) opposite the first contact surface (115), a second contact surface (125), and applying heat to the first contact surface (115) such that at least one of the plurality of solder balls (300) reaches a solder-ball bonding temperature whereat the solder ball bonds to the first contact surface (115).

公开(公告)号：US20160355902A1

公开(公告)日：2016-12-08

申请号：US15101613

申请日：2014-01-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： David Yang ,  Jing Zhang ,  Li Sun ,  Blair E. Carlson

IPC: C21D9/50 ,  B23K11/16 ,  B23K11/11 ,  C21D11/00 ,  B23K26/32 ,  B23K20/10 ,  B23K20/22 ,  B23K9/23 ,  B23K26/14

CPC classification number: C21D9/505 ,  B23K9/16 ,  B23K9/23 ,  B23K11/115 ,  B23K11/16 ,  B23K20/10 ,  B23K20/22 ,  B23K26/244 ,  B23K26/32 ,  B23K26/348 ,  B23K2103/04 ,  B23K2103/10 ,  B23K2103/50 ,  C21D9/50 ,  C21D11/00 ,  C21D11/005 ,  C21D2211/008

Abstract: A welding method includes the following steps: (a) determining a martensite tempering temperature of the at least two workpieces based, at least in part, on the chemical composition and microstructure of the woworkpieces; (b) applying sufficient energy to the workpieces to melt the workpieces at a target location, thereby creating a weld pool; (c) determining, via the control module, a target temperature and cooling range of a coolant and cooling range based, at least in part, on the martensite tempering temperature and HAZ width; and (d) cooling the first and second workpieces with the coolant such that a temperature of the workpieces at heat-affected zones is controlled below the martensite tempering temperature in order to minimize softening at the heat-affected zones. The present invention also relates to a welding system for minimizing HAZ softening.

Abstract translation: 一种焊接方法包括以下步骤：（a）至少部分地基于所述焊料的化学组成和微结构来确定所述至少两个工件的马氏体回火温度; （b）向工件施加足够的能量以在目标位置处熔化工件，从而形成焊接池; （c）至少部分地基于马氏体回火温度和HAZ宽度，经由控制模块确定冷却剂的目标温度和冷却范围;以及冷却范围; 和（d）用冷却剂冷却第一和第二工件，使得热影响区域的工件的温度控制在马氏体回火温度以下，以使热影响区域的软化最小化。 本发明还涉及一种用于最小化HAZ软化的焊接系统。

公开(公告)号：US20140231396A1

公开(公告)日：2014-08-21

申请号：US13769457

申请日：2013-02-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： David Yang ,  David R. Sigler ,  Jing Zhang

IPC: B23K11/11

CPC classification number: B23K11/11 ,  B23K11/115 ,  B23K11/3018 ,  B23K11/36

Abstract: A method for improving a resistance spot weld includes stacking two or more metal sheets and positioning first and second opposed electrodes on opposite sides of the metal stack. At least one of the metal sheets is chilled in the region where the weld is to be made. Weld current is applied to the electrodes and passes through the metal sheets to create the electric resistance spot weld only after the chilling of the at least one metal sheet reduces the temperature at the faying interface at least 5° C., thereby improving the formation of the weld nugget and quality of the weld joint. The chilling can be obtained by flowing chilled gas onto the surface of one or both of the outermost metal sheets, or by contacting the outermost metal sheets with the chilled electrode for a period of time prior to applying the weld current.

Abstract translation: 一种改善电阻点焊的方法包括堆叠两个或更多个金属片，并将第一和第二相对电极定位在金属叠层的相对侧上。 在要制造焊缝的区域中至少有一个金属片被冷却。 焊接电流施加到电极并通过金属片，以在仅在至少一个金属片的冷却将接合界面的温度降低至少5℃之后才产生电阻点焊，从而改善形成 焊点和焊缝质量。 可以通过将冷却气体流到一个或两个最外面的金属板的表面上，或者通过在施加焊接电流之前将最外面的金属板与冷却的电极接触一段时间来获得冷却。

公开(公告)号：US20140138367A1

公开(公告)日：2014-05-22

申请号：US14076648

申请日：2013-11-11

Applicant: GM Global Technology Operations LLC

Inventor： Jing Zhang ,  Pei-Chung Wang ,  David Yang

IPC: B23K35/02

CPC classification number: B23K35/0261 ,  B23K35/0255 ,  B23K35/0266 ,  B23K35/30 ,  B23K35/302 ,  B23K35/3033 ,  B23K35/3053 ,  B23K35/3066 ,  B23K35/3073 ,  C22C9/01 ,  C22C9/02 ,  C22C9/04 ,  C22C19/03 ,  C22C38/04 ,  C22C38/08 ,  C22F1/08 ,  C22F1/10

Abstract: Disclosed are self-adjusting wires, methods of making these self-adjusting wires, and thermal joining processes (such as gas metal arc welding or laser brazing) and other processes using these self-adjusting wires. The wires have an outer layer of a metal or metal alloy suitable as a joining material in the joining process and a core of a shape-memory alloy. The outer layer may be continuous about the exterior of the core or discontinuous such as a longitudinal strip or strips. The shape-memory alloy of the self-adjusting wire is “trained” to a straight-wire shape in its austenite phase. In using the self-adjusting wire in a process, a bent end of the self-adjusting wire is straightened by heating the self-adjusting wire above the austenite phase transition temperature of the shape-memory alloy.

Abstract translation: 公开了自调整线，制造这些自调整线的方法，以及使用这些自调节线的热接合工艺（例如气体金属电弧焊或激光钎焊）等工艺。 电线具有适合作为接合过程中的接合材料的金属或金属合金的外层和形状记忆合金的芯。 外层可以围绕芯的外部连续或不连续，例如纵向条或条。 自调整丝的形状记忆合金在其奥氏体相中被“训练成”为直线形状。 在使用自调整线的过程中，通过将自调整线加热到形状记忆合金的奥氏体相变温度以上，自调整线的弯曲端部被拉直。