TWI671101B - Laser welding method for different weights of golf club head - Google Patents

Abstract

A laser welding method for a weight bar of a different material of a golf club head includes a preliminary step and a welding step. The preparation step is to prepare a ball head body made of titanium alloy and a weight block made of tungsten nickel material. The ball head body has a top surface and a bottom surface to be welded for the weight block to be arranged. Area. In the welding step, the weight block is placed on the bottom surface of the area to be welded, and then an optical fiber laser device is used to form at least one continuously extending welding bead on the top surface. The weight block is welded to the to-be-welded area of the ball head body by means of optical fiber laser welding, that is, a larger one can be formed with the at least one continuous extending bead without using solder. Welding bonding area, welding the weight block of different material to the ball head body, effectively improving the reliability of the connection.

Description

Laser welding method for weight bar of foreign material of golf club head

The invention relates to a method for processing sports goods, and particularly to a laser welding method for weighted blocks of foreign materials of golf club heads.

The weight distribution of the golf club head has a great influence on the feel when swinging, and therefore it is related to the performance of the ball. Therefore, according to the habits of different users, the way of setting weights is often used to achieve different types. Weights.

At present, metal golf club heads on the market generally use a light-weight and high-hardness titanium alloy, and the weight block uses a different material that has a heavier weight than that of titanium alloy. At present, in the method of combining the weight block with a golf club head of titanium alloy, the traditional gluing and locking methods have the disadvantages of waiting for the glue to dry and requiring additional processing for the bonding structure, so the related industry has now Welding practices that are conducive to the automated operation of the production line are generally adopted, while the above disadvantages are overcome.

As for the welding methods commonly used at the present stage, it is usually achieved by "hard soldering". However, the brazing method must add additional solder in order to achieve the combination of weights through the process of melting and hardening the solder. purpose. The solder used not only needs to consider the material in accordance with the selection of the golf club head and the weight, but also requires additional costs. In terms of manufacturing efficiency of the production line, it also needs to perform additional soldering operations. Whether for manufacturing efficiency, cost, or actual product quality, there is still room for improvement.

Referring to FIG. 1, a conventional method for manufacturing a golf head using laser welding of different materials is performed in a laser welding device 6. The laser welding device 6 includes a cavity 61 and a laser light 621 that can emit laser light. A laser light generator 62 that enters the cavity 61, a gas conveying member 63 that communicates with the cavity 61 and can input an inert gas into the cavity 61, and a workpiece disposed in the cavity 61 to fix a workpiece 51's jig 64. When laser welding is performed, a striking panel 52 is first positioned on the workpiece 51, and solder 59 is provided on the periphery of the striking panel 52. The laser light 621 generated by the laser light generator 62 is used to melt the solder 59 to achieve The purpose of welding the striking panel 52 of different material to the workpiece 51.

However, although this method for manufacturing a golf head using laser welding of different materials can achieve welding of different materials, in addition to using solder 59, the technical means of installing solder 59 need to be provided in advance, and it will also be used for specific types of welding. There is a limitation. The solder 59 will add extra weight and affect the effect of the weight. It is also not suitable for a combination method for connecting weight blocks of different materials.

Therefore, an object of the present invention is to provide a laser welding method for a weight bar of a foreign material of a golf club head that can increase the welding bonding area and strength without using solder.

Therefore, the laser welding method for a weight bar of a different material of a golf club head according to the present invention includes a preliminary step and a welding step.

The preparation step is to prepare a ball head body made of titanium alloy and a weight block made of tungsten nickel material. The ball head body has a top surface and a bottom surface for the weight block to be arranged. Area to be welded.

In the welding step, the weight block is placed on the bottom surface of the area to be welded, and then an optical fiber laser device is used to form at least one continuous extending bead on the top surface of the area to be welded, so that a part of the material of the area to be welded is made. The fusion is combined with the weight block, and the weight block is welded to the to-be-welded area of the ball head body by means of optical fiber laser welding.

The effect of the present invention is that through the optical fiber laser device, a high energy can be directly provided on the area to be welded to melt a part of the area to be welded, and the entire area of the area to be welded can be used without solder. According to the preset welding bonding area, a welding bead capable of welding the weight block is freely formed. In addition to saving the cost of solder, compared with the traditional welding peripheral method, the weight block of different materials can be greatly increased. The reliability and bonding strength welded to the ball head body will not affect the weight effect of the weight block.

Referring to FIG. 2 and FIG. 3, an embodiment of a laser welding method for a weight bar of a different material of a golf club head according to the present invention includes a preliminary step 91 and a welding step 92.

The preparation step 91 is to prepare a ball head body 1 made of a titanium alloy and a weight block 2 made of tungsten nickel material. The ball head body 1 has a weight for the weight block 2 and a top. The area to be welded 11 on the surface 111 and a bottom surface 112, and a main body area 12 surrounding the area to be welded 11. The bottom surface 112 of the to-be-welded area 11 has a gap with the main body area 12 and is recessed to form a receiving groove 114 for receiving the weight block 2; in addition, in order to match the thickness of the weight block 2, it is integrally connected On the ball head body 1, the thickness of the main body region 12 is greater than the thickness of the to-be-welded region 11 to form the receiving groove 114 received by the weight block 2. Among them, the ball head body 1 made of a titanium alloy has the advantages of light weight and hard texture. The weight 2 made of tungsten-nickel material is stable in chemical properties of tungsten-nickel alloy, and it is difficult to change the position of the mass or the center of gravity due to oxidation. Therefore, as long as it is connected to the ball body 1, it can generate the position, Excellent weight performance with stable weight distribution.

In the welding step 92, the weight block 2 is first placed in the receiving groove 114 of the bottom surface 112 of the area 11 to be welded, and then an optical fiber laser device 3 (Fiber Laser) is used, which is opposite to the weight block 2 One side is irradiated and acts to melt the metal on the top surface 111 of the to-be-welded area 11 with high energy. As shown in FIG. 4, a continuous first continuous welding is formed on the top surface 111 of the to-be-welded area 11 and surrounds a closed shape. A bead 191 and a second bead 192 formed inside the first bead 191 and continuously bent. It should be particularly noted that the first bead 191 and the second bead 192 shown in FIG. 4 are just one of the bead shapes formed in accordance with the shape of the weight 2. In actual implementation, It can be adjusted according to the shape of the weight block 2 or the shape of the area to be welded 11, as long as the proper geometric shape is formed, the welding area is sufficient, and the bead of the weight block 2 can be fixed. The type shown in Figure 4 is limited.

Referring to FIG. 3 to FIG. 5 at the same time, the weight block 2 is welded to the to-be-welded area 11 of the ball head body 1 by welding the optical fiber laser device 3 without using solder. The high energy of the laser light emitted by the optical fiber laser device 3 fuses a part of the top surface 111 of the to-be-welded area 11 to form the first welding bead 191 and the second welding bead 192, compared to the conventional welding peripheral method. Forming a larger welding area, improving the reliability and bonding strength of the weight block 2 to ensure that the weight block 2 will not be detached during use.

It should be further explained that the use of optical fiber laser welding to fix the weight block 2 to the ball head body 1 can reduce costs without the use of solder, and because the operation process is simple, it is more conducive to transmission. Automated production line operation execution, effectively improve product production efficiency.

In summary, according to the laser welding method for a weight bar of a different material of a golf club head of the present invention, through the optical fiber laser device 3, high energy is directly provided on the area to be welded 11 and a part of the area 11 to be welded is melted, that is, It is possible to form a bead capable of welding the weight block 2 with a large welding joint area without using solder, thereby reliably welding the weight block 2 of different materials to the ball head body 1, so Can achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

1‧‧‧ ball head body

11‧‧‧area to be welded

111‧‧‧Top

112‧‧‧ underside

114‧‧‧ Receiving slot

12‧‧‧Main area

191‧‧‧The First Bead

192‧‧‧Second Bead

2‧‧‧ counterweight

3‧‧‧ fiber laser device

91‧‧‧ preliminary steps

92‧‧‧Welding steps

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a schematic diagram illustrating a conventional method for manufacturing a golf head using a laser welding dissimilar material; FIG. 2 is a A block flow diagram illustrating an embodiment of a laser welding method for a weight bar of a golf club head according to the present invention; FIG. 3 is a schematic flow chart assisting FIG. 2 to explain the execution flow of the embodiment; FIG. 4 is a schematic view FIG. 3 is an illustration of a weld bead formed on a to-be-welded area of a ball head body by an optical fiber laser device; and FIG. 5 is a bottom view illustrating a case where a weight block is welded to a ball head body.

Claims (3)

A laser welding method for a weight bar of a different material of a golf club head includes: a preparation step of preparing a ball head body made of a titanium alloy and a weight block made of a tungsten nickel material; the ball head The body has a to-be-welded area for the weight block to be provided, and has a top surface and a bottom surface; and a welding step, placing the weight block on the bottom surface of the to-be-welded area, and then using an optical fiber laser device in the At least one continuous extending bead is formed on the top surface of the area to be welded, so that a part of the material of the area to be welded is melted and combined with the weight block, and the weight block is welded to the ball head by means of optical fiber laser welding. On the body to be welded. The laser welding method for a weight bar of a different material of a golf club head according to claim 1, wherein, in the preliminary step, the bottom surface of the area to be welded has a gap between the bottom surface and the periphery to form a receiving groove, and In the welding step, the weight block is placed in the receiving groove. The laser welding method for a weight bar of a different material of a golf club head according to claim 1, wherein the head body further has a main body area surrounding the area to be welded, and the thickness of the main body area is greater than that of the area to be welded. thickness.