公开(公告)号：US20200009798A1

公开(公告)日：2020-01-09

申请号：US16026909

申请日：2018-07-03

申请人： Dukane IAS, LLC

发明人： Alexander Savitski ,  Paul H. Cathcart ,  Grzegorz Zdzislaw Bugaj

IPC分类号： B29C65/16 ,  B23K26/00 ,  B23K26/22 ,  B23K37/04 ,  B29C65/78 ,  B29C65/00

摘要： A laser welding system for joining first and second thermoplastic workpieces, and including a clamp, an actuator, and a laser source. The clamp includes first and second clamping structures positioned together to engage opposite sides of the workpieces when they adjoin each other. The first clamping structure has a non-flat or irregular surface, facing the first workpiece. The actuator causes the clamping structures to press the first and second workpieces together. The laser source applies laser radiation having a wavelength of 2 microns toward the workpieces to be joined, while they are pressed together by the clamp, to melt irradiated portions of the workpieces to one another. The first clamping structure transmits substantially all of the energy of the laser radiation through the material. The first workpiece has a non-flat or irregular surface facing the first clamping structure, which substantially conforms with the surface of the first clamping structure.

公开(公告)号：US20210213564A1

公开(公告)日：2021-07-15

申请号：US17215520

申请日：2021-03-29

申请人： Dukane IAS, LLC

发明人： Grzegorz Zdzislaw Bugaj ,  Alexander Savitski

IPC分类号： B23K26/28 ,  B23K26/082 ,  B23K26/06

摘要： Device and method for laser welding around a circumference of a workpiece. A fixed, non-movable unitary optical reflector has a pair of optical reflecting surface portions on a first side surface and a second side surface, respectively, arranged at an obtuse angle relative to each other. A workpiece is fixed in an assembly having the reflector. During setup, the vertical distance is adjusted between the reflector and workpiece along an axis that is transverse to a longitudinal axis thereof without any adjustment of the reflecting surfaces. The first and second side surfaces define a curve that is transverse to the longitudinal axis. Once setup has been completed, a laser beam is directed so that it moves along the optical reflector to thereby produce a 360 degree circumferential weld around the workpiece. Another assembly is provided to change the laser beam direction multiple times to irradiate a circumference of a fixed workpiece from a fixed laser source.

公开(公告)号：US20210170525A1

公开(公告)日：2021-06-10

申请号：US17182055

申请日：2021-02-22

申请人： Dukane IAS, LLC

发明人： Grzegorz Zdzislaw Bugaj ,  Alexander Savitski

IPC分类号： B23K26/082 ,  B23K26/06

摘要： Device and method for laser welding around a circumference of a workpiece. A fixed, non-movable unitary optical reflector has a pair of optical reflecting surface portions on a first side surface and a second side surface, respectively, arranged at an obtuse angle relative to each other. A workpiece is fixed in an assembly having the reflector. During setup, the vertical distance is adjusted between the reflector and workpiece along an axis that is transverse to a longitudinal axis thereof without any adjustment of the reflecting surfaces. The first and second side surfaces define a curve that is transverse to the longitudinal axis. Once setup has been completed, a laser beam is directed so that it moves along the optical reflector to thereby produce a 360 degree circumferential weld around the workpiece. Another assembly is provided to change the laser beam direction multiple times to irradiate a circumference of a fixed workpiece from a fixed laser source.

公开(公告)号：US10538036B2

公开(公告)日：2020-01-21

申请号：US15266182

申请日：2016-09-15

申请人： Dukane IAS, LLC

发明人： Alexander Savitski ,  Grzegorz Zdzislaw Bugaj ,  Leo Klinstein

IPC分类号： B29C65/16 ,  B29C65/00 ,  B29L9/00 ,  B29K101/12

摘要： A laser welding method and system for joining portions of first and second workpieces of thermoplastic material that is partially permeable to a laser beam but absorbs radiation from the laser beam. The first and second workpieces, which are made of material that absorbs radiation from a laser beam, are clamped together. A mask is placed on a first surface of the first workpiece, the first surface being opposite the surface engaging the second workpiece. The mask is impermeable to a laser beam and forms a slot for passing a laser beam to the portion of the first surface of the upper workpiece exposed by the slot, so that heating and melting of the material of the workpieces is limited to the width of the slot. A laser beam is directed onto the slot and moved in a manner to illuminate the slot to melt and join the workpieces.

公开(公告)号：US20180071990A1

公开(公告)日：2018-03-15

申请号：US15266182

申请日：2016-09-15

申请人： Dukane IAS, LLC

发明人： Alexander Savitski ,  Grzegorz Zdzislaw Bugaj ,  Leo Klinstein

IPC分类号： B29C65/16 ,  B29C65/00

摘要： A laser welding method and system for joining portions of first and second workpieces of thermoplastic material that is partially permeable to a laser beam but absorbs radiation from the laser beam. The first and second workpieces, which are made of material that absorbs radiation from a laser beam, are clamped together. A mask is placed on a first surface of the first workpiece, the first surface being opposite the surface engaging the second workpiece. The mask is impermeable to a laser beam and forms a slot for passing a laser beam to the portion of the first surface of the upper workpiece exposed by the slot, so that heating and melting of the material of the workpieces is limited to the width of the slot. A laser beam is directed onto the slot and moved in a manner to illuminate the slot to melt and join the workpieces.

公开(公告)号：US11548235B2

公开(公告)日：2023-01-10

申请号：US16026909

申请日：2018-07-03

申请人： Dukane IAS, LLC

发明人： Alexander Savitski ,  Paul H. Cathcart ,  Grzegorz Zdzislaw Bugaj

IPC分类号： B32B41/00 ,  B29C65/16 ,  B23K26/00 ,  B23K26/22 ,  B29C65/78 ,  B29C65/00 ,  B23K37/04 ,  B29K701/12 ,  B23K103/00

摘要： A laser welding system for joining first and second thermoplastic workpieces, and including a clamp, an actuator, and a laser source. The clamp includes first and second clamping structures positioned together to engage opposite sides of the workpieces when they adjoin each other. The first clamping structure has a non-flat or irregular surface, facing the first workpiece. The actuator causes the clamping structures to press the first and second workpieces together. The laser source applies laser radiation having a wavelength of 2 microns toward the workpieces to be joined, while they are pressed together by the clamp, to melt irradiated portions of the workpieces to one another. The first clamping structure transmits substantially all of the energy of the laser radiation through the material. The first workpiece has a non-flat or irregular surface facing the first clamping structure, which substantially conforms with the surface of the first clamping structure.

公开(公告)号：US11059233B2

公开(公告)日：2021-07-13

申请号：US16725727

申请日：2019-12-23

申请人： Dukane IAS, LLC

发明人： Alexander Savitski ,  Grzegorz Zdzislaw Bugaj ,  Leo Klinstein

IPC分类号： B29C65/16 ,  B29C65/00 ,  B29L9/00 ,  B29K101/12 ,  B29C65/04

摘要： A laser welding method and system for joining portions of first and second workpieces of thermoplastic material that is partially permeable to a laser beam but absorbs radiation from the laser beam. The first and second workpieces, which are made of material that absorbs radiation from a laser beam, are clamped together. A mask is placed on a first surface of the first workpiece, the first surface being opposite the surface engaging the second workpiece. The mask is impermeable to a laser beam and forms a slot for passing a laser beam to the portion of the first surface of the upper workpiece exposed by the slot, so that heating and melting of the material of the workpieces is limited to the width of the slot. A laser beam is directed onto the slot and moved in a manner to illuminate the slot to melt and join the workpieces.