CN113056339A - Golf club head and method for manufacturing golf club head - Google Patents
Golf club head and method for manufacturing golf club head Download PDFInfo
- Publication number
- CN113056339A CN113056339A CN201980076276.9A CN201980076276A CN113056339A CN 113056339 A CN113056339 A CN 113056339A CN 201980076276 A CN201980076276 A CN 201980076276A CN 113056339 A CN113056339 A CN 113056339A
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- Prior art keywords
- club head
- golf club
- face
- forging
- grooves
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- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 238000000034 method Methods 0.000 title description 15
- 238000005242 forging Methods 0.000 claims abstract description 40
- 238000005488 sandblasting Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000003801 milling Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005422 blasting Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 102220358403 c.89C>G Human genes 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 102220342298 rs777367316 Human genes 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K17/00—Making sport articles, e.g. skates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Golf Clubs (AREA)
Abstract
Provided is a golf club head having fine irregularities on the face and excellent productivity. The golf club head has a bulge (3c) of 25 [ mu ] m or less formed by forging on the face (3 a).
Description
Technical Field
The present invention relates to a golf club head and a method of manufacturing the golf club head.
Background
Some golf club heads (hereinafter, referred to as club heads) have fine irregularities formed by forming a plurality of linear grooves called score lines (score lines) on the face of the club head, or by forming fine grooves that are narrower and shallower than the score lines (see, for example, patent document 1). Such minute unevenness of the face can more easily make the golf ball spin, and a good hitting feeling can be obtained. The fine groove of the head is formed by laser processing the base material of the head or a nickel plating layer formed on the base material.
Patent document 1: japanese laid-open patent publication (JP 2015-107227)
Disclosure of Invention
As described above, since the club head having the minute unevenness on the face is subjected to post-processing such as laser processing after the outer shape of the club head is formed, it takes time to perform the processing in addition to the forming, and there is a problem that productivity is poor.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a golf club head having fine irregularities on a face and excellent productivity, and a method for manufacturing the golf club head.
The main invention for achieving the above object is a golf club head characterized in that a face has a bulge of 25 μm or less formed by forging.
Other features of the present invention will be apparent from the description of the present specification and the accompanying drawings.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the iron golf club head of the present invention, it is possible to provide a golf club head having fine irregularities on the face and excellent productivity, and a method for manufacturing the golf club head.
Drawings
Fig. 1 is a front view of the head of the present embodiment.
Fig. 2 is a sectional view of the head of the present embodiment.
Fig. 3 is a diagram illustrating a method of manufacturing the head.
Fig. 4(a) is a diagram showing a projection orthogonal to a groove, fig. 4(b) is a diagram showing a first example of a projection inclined with respect to a groove, fig. 4(c) is a diagram showing a second example of a projection inclined with respect to a groove, fig. 4(d) is a diagram showing dot-shaped projections provided in a linear array, fig. 4(e) is a diagram showing dot-shaped projections arranged in a staggered array, and fig. 4(f) is a diagram showing a projection formed on a curved line.
Fig. 5 is a graph showing the results of durability evaluation in the case of forming the projection portion by forging and the case of forming the projection portion by CNC milling.
Detailed Description
Summary of the invention
At least the following contents will be made clear by the description of the present specification and the drawings.
Specifically disclosed is a golf club head which is characterized in that a face has a bulge of 25 [ mu ] m or less formed by forging.
According to this golf club head, since the bulge portion of 25 μm or less provided on the face is formed by forging, a golf club head having a bulge portion of 25 μm or less on the face can be manufactured in a shorter time. Therefore, the golf club head having fine unevenness on the face and excellent in productivity can be provided.
Further, since the bulge of the club head of 25 μm or less is formed by forging, the forged surface is not subjected to machining such as cutting. Therefore, the formation by forging can provide higher strength than a club head manufactured by casting or the like, and the higher strength surface is not removed by machining or the like, so that a higher strength portion can be left on the face and the bulge portion of 25 μm or less. Therefore, the face and the bulge of 25 μm or less can have high durability.
The golf club head is characterized in that the club face has grooves formed by forging to a depth of more than 25 μm.
According to this golf club head, since the grooves having a depth of more than 25 μm are provided on the face, it is possible to provide a club head that discharges water or the like from the face such as rainwater and that makes it easier to spin the ball. Further, since the grooves having a depth of more than 25 μm are formed by forging, a golf club head having the grooves having a depth of more than 25 μm on the face can be manufactured in a shorter time. Therefore, the golf club head having the face provided with the grooves having a depth of more than 25 μm, which can discharge water and the like, and having excellent productivity can be provided.
The golf club head of the present invention is characterized in that the convex portion has a linear shape.
According to this golf club head, by providing the linear protrusion on the face, since the continuous protrusion is in contact with the ball, it is possible to provide a golf club head that can more easily spin the ball.
The golf club head of the present invention is characterized in that the protrusion has a linear shape and is disposed parallel to the groove.
According to this golf club head, since the grooves having a depth of more than 25 μm and the linear protrusions having a depth of 25 μm or less are arranged in parallel with the face, and the grooves having a depth of more than 25 μm and the linear protrusions having a depth of 25 μm or less act on the ball to rotate the ball in the same direction, it is possible to provide a golf club head which can more easily apply rotation.
Further, the golf club head according to the present invention is characterized in that the protrusion has a linear shape and is provided in a direction intersecting the groove.
According to this golf club head, since the linear protrusions of 25 μm or less are arranged on the face in the direction intersecting with the grooves having a depth of more than 25 μm, it is possible to provide a golf club head in which rotation in a desired direction is easily imparted by forming the linear protrusions of 25 μm or less in a predetermined direction regardless of the direction of the grooves having a depth of more than 25 μm.
The golf club head of the present invention is characterized in that the convex portion has a curved shape.
According to this golf club head, since the convex portion having a curved shape of 25 μm or less is provided on the face, it is possible to provide a golf club head in which the ball can be more easily rotated by the convex portion provided on the face of 25 μm or less and which is excellent in design angle.
The golf club head is characterized in that the plurality of the convex parts are arranged in a linear shape.
According to this golf club head, it is also possible to provide a golf club head in which the projections of 25 μm or less are arranged in a line, the projections being discontinuous on the face.
The golf club head according to the present invention is characterized in that the projecting amount of the projecting portion is larger than the projecting amount of the projecting portion formed by sandblasting.
According to this golf club head, since the protrusion having a larger protrusion amount than the protrusion amount of the protrusion formed by sandblasting is provided, and the protrusion amount is 25 μm or less, it is possible to provide a golf club head in which the sandblasted region and the hitting region of the face can be clearly recognized.
Specifically disclosed is a method for manufacturing a golf club head, which is characterized by comprising: a die preparation step of preparing a forging die having a recess with a depth of 25 μm or less in a portion where the face is formed; and a forging step of forging the metal material into a club head using the forging die.
According to this method for manufacturing a golf club head, since the bulge portion of 25 μm or less is formed on the face by forging, a golf club head having a bulge portion of 25 μm or less on the face can be manufactured in a shorter time. Therefore, it is possible to provide a method for manufacturing a golf club head that can manufacture a golf club head having minute irregularities on the face in a shorter time.
Detailed description of the preferred embodiments
< Structure of club head >)
Fig. 1 is a front view of a golf club head according to the present embodiment. Further, fig. 2 is a sectional view a-a of fig. 1.
The golf club head of the present embodiment is a club head 1 of an iron golf club.
The head 1 is formed by forging using low carbon steel (so-called soft iron) of JIS standard S30C or less (e.g., S25C) as a raw material. As shown in fig. 1, the club head 1 has a hosel portion 2 into which a shaft is inserted, and a body portion 3 having a face 3 a.
The face 3a is provided with: a plurality of grooves 3b arranged substantially horizontally in a state where a user is ready to hit a ball, and recessed from the face 3 a; and a plurality of protrusions 3c that are respectively disposed between two grooves 3b adjacent to each other among the plurality of grooves 3b and protrude from the face 3 a. In the head 1 of the present embodiment, three linear protrusions 3c arranged in parallel with the grooves 3b are provided at equal intervals between two adjacent grooves 3 b. As shown in fig. 2, the depth of each groove 3b from the face 3a is set to be greater than 25 μm, and the projection amount H of each projection 3c from the face 3a is set to be 25 μm or less (for example, 20 μm).
< method for manufacturing club head 1 >)
A method of manufacturing the club head 1 of the present embodiment will be described. The club head 1 of the present embodiment is formed by forging as described above.
In the present embodiment, the club head 1 is molded by forging a round bar of soft iron using a die.
Therefore, as shown in fig. 3, first, a mold (not shown) for molding the club head 1 by forging is manufactured (mold preparation step S1). The mold is composed of, for example, an upper mold and a lower mold divided vertically, and when the upper mold and the lower mold are closed, a space equal to the outer shape of the head is formed inside. Either the upper mold or the lower mold has a face forming portion forming the face, the face forming portion being formed with a groove forming protrusion for forming the groove 3b, and a linear recess for forming the protrusion 3 c.
Next, the soft iron round bar is heated to a predetermined temperature (for example, 1000 degrees or higher), placed on a concave portion of the lower die that is formed in the contour of the club head, and the upper die is lowered from above (forging step S2). At this time, the upper and lower molds are closed without a gap, and the material is brought into close contact with the space in the mold to mold the head 1. By this forging process, the grooves 3b and the protrusions 3c of the face 3a are formed simultaneously with the outer shape of the club head 1. The forging step S2 may include a plurality of forming steps, that is, a rough forging step of forming a round bar of soft iron into a state close to a final shape, and a finish forging step of forming the grooves 3b and the protrusions 3c as a final finish.
The forged club head 1 is subjected to a shot blasting step S3 of performing shot blasting for removing an oxide scale (oxide film); a plating step S4 for performing a plating process on the entire club head 1; after a treatment process such as a sandblasting process S5 is performed on the scribed region of the face 3a of the club head 1 where the grooves 3b and the protrusions 3c are provided, the club head 1 is completed. By blasting the scribe line region, the scribe line region after plating becomes clear, and the frictional force with the ball increases.
< Effect of the club head of the present embodiment >
According to the head 1 of the present embodiment, since the bulge portion 3c of 25 μm or less provided on the face 3a is formed by forging, the head 1 having the bulge portion 3c of 25 μm or less on the face 3a can be manufactured in a shorter time than in the case where the bulge portion is formed by CNC milling after the outer shape is formed. Therefore, the club head 1 having the bulge portion 3c of 25 μm or less on the face 3a and excellent in productivity can be provided.
Further, since the convex portion 3c of the club head 1 having a thickness of 25 μm or less is formed by forging, the surface after forging is not subjected to machining such as cutting. Therefore, the forging can provide higher strength than a club head manufactured by casting or the like, and since the surface having higher strength is not removed by machining or the like, a portion having higher strength can be left on the face 3a and the bulge portion 3c having a thickness of 25 μm or less. Therefore, the face 3a and the bulge 3c having a thickness of 25 μm or less can have high durability.
Further, since the grooves 3b having a depth of more than 25 μm are provided in the face 3a, a head that can more easily spin a ball by discharging water or the like from the face 3a such as rainwater can be provided. . Further, since the grooves 3b having a depth of more than 25 μm are formed by forging, they can be formed simultaneously with the projections 3 c. Therefore, the club head 1 having the grooves 3b with a depth of more than 25 μm on the face 3a can be manufactured in a shorter time. Therefore, the club head 1 having the face 3a with grooves having a depth of more than 25 μm, which can drain water and the like, and the bulge 3c having a depth of 25 μm or less, and having excellent productivity can be provided.
Further, by the linear convex portion 3c provided on the face 3a, since the continuous convex portion 3c is in contact with the ball, the club head 1 which can more easily rotate the ball can be provided. Further, since the linear projections 3c of 25 μm or less are arranged in parallel to the grooves 3b having a depth of more than 25 μm, the grooves 3b having a depth of more than 25 μm and the linear projections 3c of 25 μm or less act on the ball to rotate in the same direction. Therefore, the club head 1 which can more easily apply rotation can be provided.
In the above embodiment, the example in which the projections 3c provided between the grooves 3b are arranged parallel to the grooves 3b has been described, but the present invention is not limited to this, and the projections 3c may be arranged orthogonal to the grooves 3b as shown in fig. 4(a), or the projections 3c may intersect the grooves 3b so as to be inclined with respect to the grooves 3b as shown in fig. 4(b) and 4 (c). In this case, regardless of the direction of the groove 3b having a depth of more than 25 μm, the linear convex portion 3c of 25 μm or less is formed along the predetermined direction, whereby the head 1 which can be more easily rotated in a desired direction can be provided. Fig. 4(a) to 4(f) show an enlarged view of a part of the face 3a, and show a convex portion 3c provided between two grooves 3b adjacent to each other.
The projections 3c of 25 μm or less are not necessarily continuous, and for example, the projections 3c of dots may be arranged in a line as shown in fig. 4(d) or may be arranged in a staggered manner as shown in fig. 4 (e). The linear projections 3c of 25 μm or less may not be linear, and the projections 3c may be curved as shown in fig. 4(f), for example. In this case, the club head 1 can be provided which can more easily spin the ball by the convex portion 3c provided on the face 3a of 25 μm or less and which is also excellent in design.
Further, since the projection amount H of the projection portion 3c is larger than that of the projection portion formed by the blast, it is possible to provide the club head 1 capable of clearly identifying the blast-treated region and the ball striking region in the face 3 a.
< Effect of the method for manufacturing a head of this embodiment >
According to the method of manufacturing the golf club head 1 of the present embodiment, by using the forging die having the recess with the depth of 25 μm or less in the portion where the face 3a is formed, the club head 1 having the bulge 3c with the depth of 25 μm or less and the groove 3b with the depth of more than 25 μm in the face 3a can be manufactured by the primary forging step S2. Therefore, it is possible to provide a method for manufacturing a golf club head 1 capable of manufacturing a club head having a bulge 3c of 25 μm or less and a groove 3b having a depth of more than 25 μm on a face 3a in a shorter time.
In addition to the above-described operational effects, the head 1 having the convex portion 3c formed by forging was confirmed to have high durability.
Fig. 5 is a graph showing the results of durability evaluation in the case of forming the projection portion by forging and the case of forming the projection portion by CNC milling.
In this evaluation, the states of the convex portions 3c, 3c ' after a 250-ball bunker hit was compared using the head 1 in which the convex portion 3c of 25 μm or less was formed on the face 3a by forging and the head 1 ' in which the convex portion 3c ' of the same shape was formed by CNC milling according to the method for manufacturing a golf club head of the present embodiment.
As shown in fig. 5, in the head 1 ' in which the convex portion 3c ' was formed by CNC milling, after the 250-ball bunker hit was performed, the convex portion 3c ' between the two grooves 3B ' was almost worn away, and the flat portion a without the convex portion 3c ' was seen, and in the head 1 in which the convex portion 3c was formed by forging, the portion B in which three convex portions 3c remained was clearly confirmed after the 250-ball bunker hit was performed. In this way, it can be confirmed that the durability of the bulging portion 3c of the head 1 of the above embodiment in which the bulging portion 3c is formed by forging is higher than that of the head 1 'in which the bulging portion 3 c' is formed by CNC milling.
Other embodiments
The above embodiments are merely provided to facilitate understanding of the present invention, and are not to be construed as limiting the present invention. The present invention may be modified and improved within the scope not departing from the gist thereof, and the present invention naturally includes equivalents thereof.
In the above embodiment, the example in which three convex portions 3c are provided between the grooves 3b adjacent to each other has been described, but the present invention is not limited thereto, and two or less or four or more convex portions 3c may be provided between the grooves 3b adjacent to each other.
In the present embodiment, the example in which the convex portions 3c are provided between the grooves 3b adjacent to each other is described, but since the concave portions are formed between the convex portions 3c, the minute unevenness can be formed between the grooves 3b adjacent to each other by providing the convex portions 3c on the face.
In the above embodiments, the example of using soft iron as the material has been described, but the soft iron is not limited thereto, and may be any metal material.
Description of the reference numerals
1 club head, 2 hosel joint part, 3 body part, 3a face, 3b groove, 3c bulge, and H bulge
Claims (9)
1. A golf club head, characterized in that,
the face has a bulge of 25 μm or less formed by forging.
2. The golf club head according to claim 1,
the face has grooves formed by forging to a depth of more than 25 μm.
3. The golf club head according to claim 1 or 2,
the convex part is linear.
4. The golf club head according to claim 2,
the projections are linear and arranged parallel to the grooves.
5. The golf club head according to claim 2,
the protrusion is linear and arranged in a direction intersecting the groove.
6. The golf club head according to claim 1 or 2,
the projection is curved.
7. The golf club head according to claim 1 or 2,
the convex part is provided with a plurality of convex parts and is arranged in a linear shape.
8. The golf club head according to any one of claims 1 to 7,
the protruding amount of the protruding portion is larger than that of the protruding portion formed by the sandblasting.
9. A method of manufacturing a golf club head, comprising:
a die preparation step of preparing a forging die having a recess with a depth of 25 μm or less in a portion where the face is formed; and
and a forging step of pressing the metal material using the forging die to form the club head.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-226335 | 2018-12-03 | ||
| JP2018226335A JP2020089413A (en) | 2018-12-03 | 2018-12-03 | Golf club head, and manufacturing method of golf club head |
| PCT/JP2019/043960 WO2020116093A1 (en) | 2018-12-03 | 2019-11-08 | Golf club head and method for producing golf club head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113056339A true CN113056339A (en) | 2021-06-29 |
Family
ID=70973618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980076276.9A Pending CN113056339A (en) | 2018-12-03 | 2019-11-08 | Golf club head and method for manufacturing golf club head |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2020089413A (en) |
| CN (1) | CN113056339A (en) |
| WO (1) | WO2020116093A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09271546A (en) * | 1996-04-04 | 1997-10-21 | Takefu Tokushu Kozai Kk | Golf club head with toughened hard face and manufacture thereof |
| CN101190373A (en) * | 2006-11-28 | 2008-06-04 | 普利司通运动株式会社 | Golf club head |
| US20100087270A1 (en) * | 2008-10-08 | 2010-04-08 | Bridgestone Sports Co., Ltd. | Golf club head |
| CN102100961A (en) * | 2009-12-18 | 2011-06-22 | 普利司通运动株式会社 | Golf club head and method of manufacturing the same |
| CN103083883A (en) * | 2011-10-27 | 2013-05-08 | 普利司通运动株式会社 | Golf club head and method of manufacturing the same |
| CN103285566A (en) * | 2012-02-29 | 2013-09-11 | 邓禄普体育用品株式会社 | Golf club head |
| CN103372292A (en) * | 2012-04-30 | 2013-10-30 | 邓禄普体育用品株式会社 | Golf club head |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9427636B1 (en) * | 2015-09-04 | 2016-08-30 | Callaway Golf Company | Golf club head manufacturing method |
-
2018
- 2018-12-03 JP JP2018226335A patent/JP2020089413A/en active Pending
-
2019
- 2019-11-08 WO PCT/JP2019/043960 patent/WO2020116093A1/en active Application Filing
- 2019-11-08 CN CN201980076276.9A patent/CN113056339A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09271546A (en) * | 1996-04-04 | 1997-10-21 | Takefu Tokushu Kozai Kk | Golf club head with toughened hard face and manufacture thereof |
| CN101190373A (en) * | 2006-11-28 | 2008-06-04 | 普利司通运动株式会社 | Golf club head |
| US20100087270A1 (en) * | 2008-10-08 | 2010-04-08 | Bridgestone Sports Co., Ltd. | Golf club head |
| CN102100961A (en) * | 2009-12-18 | 2011-06-22 | 普利司通运动株式会社 | Golf club head and method of manufacturing the same |
| CN103083883A (en) * | 2011-10-27 | 2013-05-08 | 普利司通运动株式会社 | Golf club head and method of manufacturing the same |
| CN103285566A (en) * | 2012-02-29 | 2013-09-11 | 邓禄普体育用品株式会社 | Golf club head |
| CN103372292A (en) * | 2012-04-30 | 2013-10-30 | 邓禄普体育用品株式会社 | Golf club head |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020089413A (en) | 2020-06-11 |
| WO2020116093A1 (en) | 2020-06-11 |
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Application publication date: 20210629 |