公开(公告)号：US20190176257A1

公开(公告)日：2019-06-13

申请号：US16326698

申请日：2017-08-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUYA FURUYAMA ,  SHIGEKI YONEMORI ,  ATSUHIRO KAWAMOTO ,  JUNJI FUJIWARA ,  NORIYUKI MATSUOKA

IPC: B23K9/073 ,  B23K9/09 ,  B23K9/133 ,  B23K9/173 ,  B23K9/095

Abstract: A method of controlling arc welding with a consumable electrode includes repeating the following periods in sequence: a short-circuit welding period to perform short-circuit arc welding; a pulse welding period to perform pulse welding; and a cooling period in which the welding current output is zero.

公开(公告)号：US20250025956A1

公开(公告)日：2025-01-23

申请号：US18905123

申请日：2024-10-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOICHI FUKUMITSU ,  ATSUHIRO KAWAMOTO ,  KAITO MATSUI ,  JUNJI FUJIWARA ,  HITOSHI NISHIMURA ,  YUYA FURUYAMA

IPC: B23K9/12 ,  B23K9/133 ,  B23K37/02

Abstract: A welding system includes a tip that biases a welding wire and has a forced power supply mechanism for supplying power to the welding wire at a distal end, a torch including the tip at a distal end, the torch supplying the welding wire toward a welded portion, an automatic machine that holds the torch, and a welding wire straightener attached to the automatic machine, the welding wire straightener correcting a bending tendency of the welding wire.

公开(公告)号：US20190224771A1

公开(公告)日：2019-07-25

申请号：US16326390

申请日：2017-09-08

Applicant: Panasonic Intellectual Property Management Co. Ltd.

Inventor： JUNJI FUJIWARA ,  ATSUHIRO KAWAMOTO ,  YUYA FURUYAMA

IPC: B23K9/095 ,  B23K9/09 ,  B23K9/10 ,  B23K9/12 ,  B23K9/16 ,  B23K9/23

Abstract: An arc welding device includes memory in which a combination of a short circuit frequency, a peak current, and a peak current period is stored and determinator that determines a peak current and a peak current period based on a set short circuit frequency and the combination stored in memory. A welding output part performs welding output based on the peak current and the peak current period determined by determinator.

公开(公告)号：US20190084068A1

公开(公告)日：2019-03-21

申请号：US16086653

申请日：2017-03-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUYA FURUYAMA ,  ATSUHIRO KAWAMOTO ,  JUNJI FUJIWARA ,  MASARU KOWA ,  KAITO MATSUI

IPC: B23K9/073 ,  B23K9/12 ,  B23K9/02

Abstract: In thin sheet welding, when a heat input amount relative to a sheet thickness is too large, a welding defect such as a deviation from aim due to occurrence of a strain or burn through may easily occur. When a welding current is decreased to reduce the heat input amount, there is an issue in which an arc tends to become unstable. In arc welding in which short-circuit and arcing are repeated, first heat input period (Th) and second heat input period (Tc) having a heat input amount less than that of first heat input period (Th) are periodically repeated and a welding current during an arc period in second heat input period (Tc) is decreased to extinguish the arc. This reduces the heat input amount into a welding object and suppresses burn through or a strain upon welding, while making the arc stable.

公开(公告)号：US20190070687A1

公开(公告)日：2019-03-07

申请号：US16086658

申请日：2017-03-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YUYA FURUYAMA ,  ATSUHIRO KAWAMOTO ,  JUNJI FUJIWARA ,  MASARU KOWA ,  KAITO MATSUI

IPC: B23K9/095 ,  B23K9/073 ,  B23K9/12

Abstract: In thin sheet welding, when a heat input amount relative to a sheet thickness is too large, a welding defect such as a deviation from aim due to occurrence of a strain or burn through may easily occur. When a welding current is decreased to reduce the heat input amount, there is an issue in which an arc tends to become unstable. In arc welding that repeats short-circuit and arcing, first heat input period (Th) and second heat input period (Tc) having a heat input amount less than that of first heat input period (Th) are periodically repeated. This reduces the heat input amount into a welding object and suppresses burn through and a strain upon welding while making the arc stable.