WO2014113527A4 - Methods for counteracting rebounding effects during solid state resistance welding of dissimilar materials - Google Patents

Methods for counteracting rebounding effects during solid state resistance welding of dissimilar materials Download PDF

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Publication number
WO2014113527A4
WO2014113527A4 PCT/US2014/011777 US2014011777W WO2014113527A4 WO 2014113527 A4 WO2014113527 A4 WO 2014113527A4 US 2014011777 W US2014011777 W US 2014011777W WO 2014113527 A4 WO2014113527 A4 WO 2014113527A4
Authority
WO
WIPO (PCT)
Prior art keywords
force
members
follow
guide wire
weld
Prior art date
Application number
PCT/US2014/011777
Other languages
French (fr)
Other versions
WO2014113527A1 (en
Inventor
John A. Simpson
Jeffrey F. DOOLEY
Matthew J. Gillick
Original Assignee
Abbott Cardiovascular Systems, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abbott Cardiovascular Systems, Inc. filed Critical Abbott Cardiovascular Systems, Inc.
Priority to EP17159014.4A priority Critical patent/EP3192608B1/en
Priority to EP14702708.0A priority patent/EP2945768B1/en
Priority to JP2015553815A priority patent/JP6351628B2/en
Priority to CN201480010026.2A priority patent/CN105142845B/en
Publication of WO2014113527A1 publication Critical patent/WO2014113527A1/en
Publication of WO2014113527A4 publication Critical patent/WO2014113527A4/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
    • B23K11/20—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of different metals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/04—Flash butt welding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09108—Methods for making a guide wire
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09—Guide wires
    • A61M2025/09133—Guide wires having specific material compositions or coatings; Materials with specific mechanical behaviours, e.g. stiffness, strength to transmit torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/32—Wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • B23K2103/05—Stainless steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/14—Titanium or alloys thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials
    • B23K2103/26—Alloys of Nickel and Cobalt and Chromium

Abstract

The present disclosure is directed to methods for joining initially separate members (302', 304') of different metallic materials, e.g., as in joining segments of a multi-segment intravascular guide wire (300'), as well as multi-segment intravascular guide wires (300') so formed. Initially separate members (302', 304') are provided, which members (302', 304') comprise different metallic materials relative to one another, e.g., stainless steel and nitinol. The members (302', 304') are aligned with one another, and a first force is applied to the members (302', 304') while delivering electrical current through the members (302', 304') to solid state weld the separate members (302', 304') to one another. A follow up force that is greater than the first force is applied as solid-state deformation occurs and a weld nugget (322') forms between the members (302', 304'). The weld nugget (322') so formed is thinner and of a larger transverse cross-sectional area than would be produced without application of the follow up force.

Claims

AMENDED CLAIMS received by the International Bureau on 01 August 2014 (01.08.2014).
1. A method for joining members of different metallic materials, the method comprising:
providing multiple initially separate members, which members comprise different metallic materials;
aligning the separate members;
applying a first force to the aligned members while delivering electrical current through the separate members to weld the separate members to one another; and
applying a follow up force that is greater than the first force as deformation of the members occurs and a weld nugget forms between the members so as to produce a weld nugget that is thinner and of a larger transverse cross-sectional area than would be produced without application of the follow up force.
2. The method of claim 1 wherein the follow up force is from about 10% greater to about 200% greater than the first force.
3. The method of claim 1 wherein the follow up force is from about 25% greater to about 150% greater than the first force.
4. The method of claim 1 wherein the follow up force is from about 50% greater to about 100% greater than the first force.
5. The method of claim 1 wherein the follow up force is applied after electrical current delivery has stopped and before deformation is complete.
6. The method of claim 1 wherein the members are elongate, and are to be joined end to end, the method further comprising preparing corresponding ends of the elongate members to smooth and flatten the ends prior to alignment and welding.
7. The method of claim 1 wherein the weld nugget has a diameter that is at least 5% greater than would be produced without application of the follow up force. 25
8. The method of claim 1 wherein the weld nugget has a diameter that is at least 10% greater than would be produced without application of the follow up force.
9. The method of claim 1 wherein the weld nugget has a diameter that is from about 15% greater to about 25% greater than would be produced without application of the follow up force.
10. The method of claim 1 wherein the weld nugget has an average thickness that is from about 10% smaller to about 50% smaller than would be produced without application of the follow up force.
11. The method of claim 1 wherein the weld nugget has an average thickness that is from about 15% smaller to about 35% smaller than would be produced without application of the follow up force.
12. The method of claim 1 wherein the weld nugget has an average thickness that is from about 20% smaller to about 30% smaller than would be produced without application of the follow up force.
13. The method of claim 1 wherein one member comprises nitinol and another member comprises stainless steel.
14. The method of claim 13 wherein the nitinol and stainless steel members are directly joined together by the weld. 26
15. The method of claim 1, wherein the method is for joining a multi- segment intravascular guide wire, wherein:
providing multiple initially separate members comprises providing multiple initially separate portions of the guide wire, which portions comprise different metallic materials, each portion including an end to be joined to a corresponding end of another portion;
wherein aligning the separate members comprises axially aligning the corresponding ends of the separate guide wire portions;
wherein applying a first force to the aligned members comprises applying a first axial force to the axially aligned portions while delivering electrical current through the separate guide wire portions to weld the separate guide wire portions to one another; and
wherein applying a follow up force comprises applying a follow up axial force that is greater than the first axial force after electrical current delivery has stopped and before rebounding occurs, as axial deformation of the guide wire portions forms a weld nugget between the guide wire portions that is thinner and of a larger transverse cross-sectional area than would be produced without application of the follow up axial force.
16. The method of claim 15 further comprising preparing corresponding ends of the guide wire portions to flatten and smooth the corresponding ends prior to axial alignment and welding.
17. The method of claim 15 wherein one portion comprises nitinol and another portion comprises stainless steel, the nitinol and stainless steel portions being directly joined together by the weld.
18. A multi-segment intravascular guide wire comprising:
an elongate first portion comprising a first metallic material;
an elongate second portion comprising a different metallic material, the first and second elongate portions being directly joined together end to end by a solid-state weld; and 27
a heat affected zone surrounding an interface of the weld where the first and second portions are joined together, wherein the heat affected zone has an average thickness of less than 0.20 mm.
19. The multi-segment intravascular guide wire of claim 18 wherein one portion comprises nitinol and the second portion comprises stainless steel.
20. The multi-segment intravascular guide wire of claim 18 wherein the heat affected zone has an average thickness of less than 0.18 mm.
21. The multi-segment intravascular guide wire of claim 18 wherein the heat affected zone has an average thickness from 0.15 mm to 0.18 mm.
PCT/US2014/011777 2013-01-17 2014-01-16 Methods for counteracting rebounding effects during solid state resistance welding of dissimilar materials WO2014113527A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17159014.4A EP3192608B1 (en) 2013-01-17 2014-01-16 Multi segment intravascular guide wire with a welding ; method of counteracting rebounding effects during solid state resistance welding of dissimilar materials
EP14702708.0A EP2945768B1 (en) 2013-01-17 2014-01-16 Method of counteracting rebounding effects during solid state resistance welding of dissimilar materials
JP2015553815A JP6351628B2 (en) 2013-01-17 2014-01-16 Method to correct rebound effect during solid resistance welding of dissimilar materials
CN201480010026.2A CN105142845B (en) 2013-01-17 2014-01-16 Method for offsetting the spring-back effect during the solid state resistance weldering of dissimilar material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/744,276 US9636485B2 (en) 2013-01-17 2013-01-17 Methods for counteracting rebounding effects during solid state resistance welding of dissimilar materials
US13/744,276 2013-01-17

Publications (2)

Publication Number Publication Date
WO2014113527A1 WO2014113527A1 (en) 2014-07-24
WO2014113527A4 true WO2014113527A4 (en) 2014-08-28

Family

ID=50033826

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/011777 WO2014113527A1 (en) 2013-01-17 2014-01-16 Methods for counteracting rebounding effects during solid state resistance welding of dissimilar materials

Country Status (5)

Country Link
US (4) US9636485B2 (en)
EP (2) EP2945768B1 (en)
JP (1) JP6351628B2 (en)
CN (1) CN105142845B (en)
WO (1) WO2014113527A1 (en)

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JP6351628B2 (en) 2018-07-04
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US11931817B2 (en) 2024-03-19
US20170225260A1 (en) 2017-08-10
US20220331896A1 (en) 2022-10-20
EP2945768A1 (en) 2015-11-25
US11440127B2 (en) 2022-09-13
US20200298332A1 (en) 2020-09-24
EP3192608A1 (en) 2017-07-19
US20140200555A1 (en) 2014-07-17
US9636485B2 (en) 2017-05-02
JP2016510261A (en) 2016-04-07

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