TWI238731B - Welding method for a golf club head - Google Patents

Abstract

A welding method for a golf club head comprises the following steps: pre-fabricating a first club head member having a first welding surface and a second club head member having a second welding surface; abutting the first welding surface of the first club head member against the second welding surface of the second club head member; welding the first welding surface to the second welding surface by a magnetic pulse welding (MPW) method so as to form a welding portion between the first club head member and the second club head member; and machining the first club head member, the second club head member, and the welding portion to finish the golf club head.

Description

1238731 — _ V. Description of the invention (1) [Technical field to which the invention belongs] In particular, the present invention relates to a type of Goltu ^ said one about the use of electromagnetic pulse welding square; two: the bonding method of different materials Tan Tanxiang Capacitive and head structure [prior art] Method of strength. Today's golf clubs are designed with trending head bodies and striking panels, which are usually made of No. 22, especially the 17-4P stainless steel club head body and materials. For example, the body and the striking panel with high elastic deformation ability . D-strength club head Although the design of the above compound seal can improve the golf club's performance, it is difficult to form a good contact table between different materials. -Common panel commonly used in the industry; Department. =: Fine brazing (welding) and traditional welding (wel, ding machine 2 = As far as the mechanical embedding method is concerned, there is still a boundary gap between the striking panel and the head body after the combination, which often forms a striking ball. The transmission of stress hinders the elastic deformation of the striking panel = to the limit, and it is easy for the striking panel and the head body to generate strange sounds due to each other; as far as the glue method is used, the glue method can only form a low level. Due to the joint strength, it is impossible to expand the range of club heads that can be used; 'As for the brazing method, it can only form a low joint strength as the above-mentioned bonding method', so it cannot expand the range of club heads that are applicable ·-C: \ L0G0-5 \ FIVE C0NTINENTS \ PK9635.ptd Page 6 1238731 V. Description of the invention (2)? In the case of argon welding, due to the welding compatibility of dissimilar materials, usually i = f, it is easy to produce solidification cracks after welding. Problems such as hot bead cracking and reduced mechanical properties after welding cannot effectively improve the welding yield. In order to improve the above-mentioned shortcomings, the industry has developed the use of [Som-stateweldlng] method to improve the bonding = the most commonly used in quality basins is the friction friction welding [frictioon sUr welding].

The friction welding method of golf club heads, such as the Republic of China No. 45252, the friction welding method of the ball head face friction welding method "and the United States Publication No. 2002/0 1 8785 1" the friction of the golf ball face Welding method [Manufactuing Meth〇dfοra Gοlf with heart] invention patent, a golf club includes a head body and a striking panel. The head system is made of a first metal material (such as stainless steel). The striking panel is made of a second metal material (for example, a titanium alloy), and the striking surface-outer peripheral edge forms a perfect circle. When assembling, it uses friction welding to combine the head body and the striking panel. First, a pressure P is applied on the striking panel, so that the striking panel abuts a sweet spot on the front face of the club head body, and the striking panel is subjected to 3,000 rpm to 2000 ° relative to the club head body. 〇High speed rotation. Then, the striking panel and the head body are solidly bonded due to friction. Thereby, the striking panel can be quickly combined with the head body. Finally, the protruding material and burr of this striking panel are removed, and after proper surface processing, a high-elf club head finished product can be made. Tian Although the friction welding method used in golf club heads can simplify the manufacturing process and improve the quality of the joint compared to the other combination methods described above, the friction welding method is practical.

1238731 -------- V. Description of the invention (3)

Zi: Deposit: Because the striking panel must be suitable for bonding with this club head: Face: Only f forms a perfect round shape, which cannot be shaped by other club heads; it is also not suitable for combining non-regular circle compatibility Poor, ν, moreover, the nature of the striking panel and the head body: mvrf friction welding is generated between the two-kneeling, especially when = etalUc layer, or hardened layer]. When the compatibility is insufficient, Ding: J2 belongs to 0. The welding of the metal material of the head body 10 easily causes structural characteristics that are not conducive to the improvement of the bonding strength. The point is still necessary = deformation energy "based on the above-mentioned method. ^ Good In view of this, the above-mentioned various welding heads of Shalf are improved by forming a welding surface separately in the present invention. The disadvantage is that the two head members are welded by the two-phase method. By: t strength and avoiding shadow Quality welding compatibility and improved welding combination [Abstract] The main purpose of the present invention is the Sun Ting # method, in which electromagnetic pulse welding is used: the welding combination of the husband's head is assembled into a golf club head to make the hair; The secondary purpose of the present invention is to provide a method for increasing the convenience of assembling a talented head. The method is to use electromagnetic pulse to weld the two head members of the welding joint of J = Elf club head, and use the assembly method to weld the same or Heterogeneous material or muffler head, so that the present invention has increased C: \ L0G0-5 \ FIVE CONTINENTS \ PK9635. Ptd page 8 1238731 V. Description of the invention (4) Welding and lifting! Steps: Pre-manufactured-the first-head member includes the following:] There are 7th-welding face and-the second welding face C 'of its ▲ one of the welding face abuts against the second head member 2. == a club head member that joins the first and second welding surfaces with the joint surface; in the ministry; and in the first club head member, the first: ^ and = 成 一 谭 接 ίί :: 2Γ 以Made-The finished product of the golf club head is carried out in order to make the above and other objects of the present invention easy to understand, and the following will give details of the present invention in the following description. I attached drawings, please refer to the first As shown in FIG. 2, the first step of the first-implemented welding method of the present invention is: pre-manufacturing a first rod: Modal Rod-Second Head Member 2 ′, which is provided with a _th welding surface ^ and冓 — 件 1- and Welding surface 21. First, the present invention chooses to make the [head member 1 and the second head member ^ the head member 1 and the second by pre-manufacture, forging, and the first method]. The head member 2 is a member of a cut golf club head. It is selected to be made of the same or different metal and alloy materials. Stainless steel [such as 17-4PH stainless steel], carbon steel, low carbon steel, aluminum alloy, steel, low alloy steel, iron-manganese aluminum alloy, cast iron, nickel-based alloy, structural steel super-port gold steel, crane alloy, or chin alloy [Such as 6 Ming-4 Kaizhiqin Alloy] and other materials. The first head member 1 is provided with at least an internal space, and the welding surface 11 is formed on the front peripheral edge of the internal space. 9Page 9 C: \ L0G0-5 \ FIve CONTINENTS \ PK9635. 1238731 ^ V. Description of the invention (5) The first welding surface 1 1 is preferably formed to be inclined radially outward. The second head member 2 belongs to A striking surface is reversed, which is composed of a U portion, 2a, and a flat plate portion 2b of the same metal material. The annular wall portion 2a is provided with a notch 20 and the second welding surface 21. The flat plate portion 2b may be bonded to the notch 20 of the surrounding wall portion 2a by an appropriate welding method, such as a high-energy welding method such as laser. The second welding surface 21 is formed on the end surface of the annular wall portion 2a, and is inclined radially inward from the welding surface 11. ^ With reference to Figures 1, 2 and 2A, the second step of the method for dry-joining a Gaul and spearhead according to the first embodiment of the present invention is: first welding the first head member 1, The surface 11 abuts against the second welding surface 21 of the second head member 2, and only the second welding surface 21 of the ring wall portion 2 a first abuts against the first > head member 1 correspondingly. On the first welding surface ". The flat plate portion 2b is temporarily not combined with the notch 20 of the ring wall portion 2a, so as to reserve operating space for subsequent electromagnetic pulse welding steps. / Please refer to sections 1, 2, 2A, 3 As shown in FIG. 3A, the third step of the method for welding a golf club head according to the first embodiment of the present invention is to perform electromagnetic pulse welding (magneUc pulse welding, MPW) on the first and second welding surfaces 11, 21 ] To form a welding portion 41. The electromagnetic pulse welding method used in the present invention is a solid state welding [s〇1 id — state welding] method, which has excellent bonding of dissimilar metal materials, and has a small heat affected zone. The present invention uses a pair of electromagnetic pulse devices 3 丨, 3 2 which are mainly an excitation coil. Capacitive discharge can be used to post and impulse release high-energy currents, thereby forming a full current [eddycurrent] on the first and second head members 丨, 2 to generate a magnetic field, respectively. Page 10 C: \ LOGO -5 \ FIVE CONTINENTS \ PK9635.ptd 1238731 V. Description of the invention (6) Due to the opposite magnetic repulsion between the two magnetic fields, the two club head members 1, 2 are moved away from the electromagnetic pulse device 3 1, 3 2 direction moves at high speed. In other words, 'the two welding surfaces 丨 丨, 2 1 will produce a great electric pressure', so the two welding surfaces 1 1, 2 1 closely contact each other until the metal base of the two is caused. The strength of the material is softened to less than its yield strength [yie 1 d strength], which makes the metal substrate plastic. The magnetic repulsion force is proportional to the square of the pulse discharge current. When different types of metal substrates are used, Adjust the pulse discharge current to control the magnetic repulsive strength 'and then get the appropriate plasticity for electromagnetic pulse welding.

As shown in Fig. 3, after the electromagnetic pulse welding step is performed, the first and second welding surfaces 11 and 21 are combined to form the welding portion 41. As shown in FIG. 3A, it shows a connection diagram of the welding portion 41 of the electromagnetic pulse, and the welding portion 41 exhibits a wavy plastic deformation (wavy plastic defomation) to make the two mutually join. The welding portion 41 has excellent welding compatibility of dissimilar materials, which can increase the welding bonding strength of the first and second head members 丨 and 2 to connect the electromagnetic pulse device 32 from the annular wall. The notch 20 of the portion 2a is taken out, and the flat plate portion 31 is bonded to the notch 20 of the ring wall portion ^ by an appropriate welding method to form a welded portion 42. = As shown in Figures 3 and 4, the Gaoer of the first embodiment of the present invention

The two head members and the welded portion 41 are finished with a surface head f-piece and a Delf head. In the above welding steps: ;;;;;; the second wall 2a of the second high piece 2:, = = ... into a semi-finished product of the same cup. At this time, the ring wall portion and the flat plate

V. Description of the invention (7) Part 2 b collectively forms the striking surface of U-shaped or L-shaped section: The semi-finished product of the club head is selected according to the product requirements. Finally, the golf [debUrring], removal of excess material, rust removal, trimming, plating, mirror surface treatment, matte surface treatment, mechanical electricity mining, ion peening (shot peening), printed pattern stamps, meter 3 laser Carving and sandblasting 4 surface processing. Accordingly, the present invention enables the high-precision paint and protective film to have better appearance and consistent specifications. The finished product of the Men's 3-way club head has the following features: 凊 Referring to Fig. 5 ', it discloses the welding method of the silver-head according to the present invention. Compared with the first implementation / elf, the first welding surface U is selected to form an inclination radially inwardly, which corresponds to an inclination radially outward. Sae this, the first contact surface 21 11 and 21 can also be parallel to the two electromagnetic pulse devices 31: 32 ^ ::::, so that the two electromagnetic pulse devices 31 and 32 generate two = can not push against the Two welding surfaces 11, 2 丨, accurate / effective use efficiency and bonding strength. Furthermore, to ensure the combination of electromagnetic pulse welding, please refer to FIGS. 6, 6A and 7, which disclose a welding and bonding method for a golf club head according to a third embodiment of the present invention. Compared with the first embodiment, the first head member 1 [head body] of the second embodiment is provided with a stepped portion 12 in the internal space 101 / opening. This first welding surface is formed on the outer peripheral surface of the stepped portion 12. A gap ιm is formed on the back surface of the internal space 10, and the j-port 1 0 1 can be appropriately welded with a back plate i 3. When the electromagnetic pulse welding is performed, the 'notch 1 0 1 is not combined with the back plate i 3 for the time being, so as to reserve an operation space' for the electromagnetic pulse device 32. Furthermore, the second head member 2 [hitting panel] is directly integrally formed and bent backward to form a ring wall 22. The p.12 C: \ L0G0-5 \ FIVE C0NTINENTS \ PK9635. Ptd 1238731 V. Description of the invention (8) Two welding surfaces 2 1 are formed on the inner wall surface of the ring wall 22. Thereby, the first and second welding surfaces 11, 2 1 can also be correspondingly combined, and the two electromagnetic pulse devices 3 1 and 3 2 are used to perform electromagnetic pulse welding to form the welding portion 41. After the electromagnetic pulse welding process is completed, the electromagnetic pulse device 32 is taken out, and the back plate 13 is appropriately welded to form a welding portion 43. The welding may be high-energy welding or argon welding. Referring to Fig. 8, a method for coupling golf talents according to a fourth embodiment of the present invention is disclosed. Compared with the third embodiment, the first welding surface U of the first head member 1 [head body] and the second welding surface 21 of the second head member 2 [hitting panel] of the fourth embodiment are formed correspondingly. Proper radial tilt. Thereby, the first and second welding surfaces 丨, 21 can also keep the operation directions of the two electromagnetic pulse devices 3 1 and 32 not parallel to ensure the bonding efficiency and bonding strength of the electromagnetic pulse welding. = Refer to Figures 9, 10 and 11 for details, which disclose the fifth embodiment of the present invention, a welding and bonding method for a Nanlf club head. Compared with the two golf club heads in the IP of the first embodiment, the fifth embodiment is an iron-type golf club head, the ^^ are provided with a -cave core, the first welding ridge is formed on the eight sides . Open the perimeter. The cavity 14 is formed at the rear-an open furnace to reserve a working space for placing the electromagnetic = piece 2 and the first strike welding r; and r welding 1 and the core = = two for performing electromagnetic pulse welding. Two electromagnetic pulse devices 31, 70%: fcp connector 41, and then combined into iron. Page 13 C: \ LOGO-5 \ FIVE CONTINENTS \ PK9635.ptd 1238731 V. Description of the invention (9) Finished golf club head. Ming refers to his brother's picture 12 to see how the pot-to-head joint is combined. In comparison with the sixth embodiment, the golf ball first and second welding surfaces u, 21 are shown in the embodiment, the sixth embodiment; when pulse welding, the two electromagnetic pulses; = two :: in progress The electrical first and second welding surfaces u and 31 are arranged appropriately in the vertical direction. With this ::: line f is upward, for example, it is arranged in the two electromagnetic pulse devices 31, 32 X and the first-welding surface 11, 21 that can be welded with the magnetic pulse = rate 3 and I :. To keep it vertical to ensure that the electric hard = conventional golf club's mechanical talk, gluing, welding and other bonding methods can not take into account the combination of the club; structure; = Second Life "r The invention of Figure 1 by the second device 31, 32 to know the joints U, 21, and use electromagnetic pulses to break each u, welding of electromagnetic pulses to form the welded part 41 beer dragon, _ 22 two pairs increase the compatibility of heterogeneous welding, improve the welding support substrate The original structure and properties. Although the present invention has been disclosed in detail using the foregoing preferred embodiments, 1 invention, anyone skilled in this art can make various changes and modifications without departing from the scope of the present invention. Therefore, the warranty compliance scope of the present invention is subject to the definition of the scope of the attached patent application. M 11 page 14 C: \ L0G0-5 \ FIVE CONTINENTS \ PK9635.ptd 1238731 Schematic description [Schematic Brief Description] Figure 1: A block diagram of the golf club head of the present invention. Flow chart of the method of sighing k method. Figure 2 · A Gaol anatomy view of the first embodiment of the present invention. The woodcutter knows the head before welding. 2A Figure: Electromagnetic diagram of the second figure of the present invention. Partial enlargement Figure 3: A cross-sectional view of the first embodiment of the present invention. "Example-the group of a golf club head after welding. Microscopic Figure 3A... The combined stereoscopic head of the electronic head Fig. 4: The golf club of the first embodiment of the present invention Fig. 5: Anatomy view of the golf of the second embodiment of the present invention. Figure 6: Anatomy view of the third embodiment of the present invention. Fig. 6A before the golf club head is welded · The electromagnetic pulse welding bitmap of Fig. 6 of the present invention. 1 < Partially enlarged group Fig. 7: A sectional view of a golf club according to a third embodiment of the present invention. After you pick up Figure 8: Anatomy view of a golf club according to a fourth embodiment of the present invention. Only points in the Muping area. Figure 9: The points of the fifth embodiment of the golf club of the present invention. Page 15 C: \ L0G0-5 \ FIVE CONTINENTS \ PK9635. Fig. 10: A sectional view of a golf club head after welding according to a fifth embodiment of the present invention. Figure 11: A perspective view of a golf club head according to a fifth embodiment of the present invention. Fig. 12: An anatomical view of a golf club head according to a sixth embodiment of the present invention before welding. [Description of main component symbols] 1 Head body 10 Internal space 101 Missing D 11 First welding surface 12 Step portion 13 Back plate 14 Cavity 141 Opening 2 Hitting panel 2a Ring wall portion 2b Flat portion 20 Notch 21 Second welding surface 22 Surrounding wall 31 Electromagnetic pulse device 32 Electromagnetic pulse device 41 Welding section 42 Welding section 43 Welding section / 1

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Claims (1)

1238731 VI. Application for Patent Scope 1. A welding method for golf club heads, which includes pre-manufacturing-the first head member and a second head structure. In one step, a first welding surface and a second welding surface are provided; The first welding surface of the first head member is abutted against the second welding surface of the member; and the first pulse is formed on the first and second welding surfaces for electromagnetic pulse welding-: Assembled into a golf club head. 2. According to :: The scope of patents! The welding place of the golf club head is 4 U. A head member system-the head body, which is provided with "the first welding surface is formed on the front of the interior space of U 3, the profit range of the golf club, Wherein, the second head member is a strike panel, and n is composed of a method section and a flat plate section. The ring wall section is provided with a defect: a. The first known interface is formed at the end of the ring wall. Branch: | 4. According to the first period of the scope of patent application, where the first and the first-the second technology = two dry $ welding method 5, extended application & The straight-to-first-to-contact surface is formed to form a radial tilt. The strong connection of the golf club head: Method: The first head member of the IH is tied to a club, and the two-way swing ®i Γ opening forms a stepped portion, and the first joint surface is formed on the outer periphery of the stepped portion. Surface. 6th, according to the scope of the patent application No. 5 顼, ^ ψ ^ ^ > The method of welding and joining the member's birch head, wherein the first head member forms a gap on the back side, the gap = page 17C: \ L0G0-5 \ FIVE COiVTINENTS \ PK9635. Ptd 1238731 6. The scope of patent application is combined with a backplane. 7. The welding and joining method for a golf club head according to item 1 of the scope of the patent application, wherein the second club head member is a striking panel which is bent backwards to form a ring wall, and the second welding surface is formed on the ring wall. Inside the wall. 8. The welding and joining method for a golf club head according to item 1 of the scope of the patent application, wherein the first head member is a head body provided with a cavity, and the first welding surface is formed on the front of the cavity. On the perimeter of the opening. 9. The welding and joining method for a golf club head according to item 1 of the scope of the patent application, wherein the second club head member is a striking panel which is bent backward to form a ring wall, and the second welding surface is formed on the ring wall. On the end face. 10. The welding and joining method for a golf club head according to item 1 of the scope of the patent application, wherein the first and second club head members are made of dissimilar metals and alloys. C: \ L0G0-5 \ FIVE C0NTINENTSNPK9635.ptd Page 18