TWI566813B - A method for manufacturing a golf club head - Google Patents

Description

Golf club head manufacturing method

The present invention relates to a method of manufacturing a golf club head, and more particularly to a method of manufacturing a golf club head that can shorten working hours.

In general, the golf club head manufacturing method takes a bar, obtains a body rough embryo through several passes of forging, and continues to surface-treat the body rough embryo to obtain a golf club head. However, in the process of forging, the molten metal at high temperature will overflow the mold, so that the surface of the formed forging will form a trim, and further trimming must be performed to remove the trim.

For example, in a conventional golf club head manufacturing method, the bar is sequentially subjected to hot rough forging, hot forging, and cold fine forging to form the body rough embryo, which is due to hot rough forging and hot forging. Since the edge material is formed, it is necessary to further trim the edge between hot rough forging and hot forging, and between hot forging and cold forging.

Moreover, another conventional golf club head manufacturing method is to form the bulk rough embryo by hot rough forging, hot fine forging and hot forming, in this case, hot rough forging and hot fine forging. The process also forms a side material, so it is still necessary to further trim the edge between hot rough forging and hot fine forging, and between hot fine forging and hot forging.

Therefore, in the above-mentioned conventional golf club head manufacturing method, trimming is required after each high-temperature forging, thereby prolonging the process time, and the temperature of the forging member continues to decrease during the trimming process, and the next hot forging is performed. When it is necessary to heat the forgings again, it is not only time-consuming, but also heating the forgings multiple times will cause excessive consumption of energy. Moreover, several times of trimming will also cause Excessive waste of materials, the conventional golf club head manufacturing method has the problems of time consuming, energy consumption and poor material utilization, and it is indeed necessary to improve.

The invention provides a golf club head manufacturing method, which can reduce the problems of time consumption, energy consumption and material waste caused by multiple trimming.

The golf club head manufacturing method of the present invention comprises: providing a bar; providing a single forging machine having at least two molds; at a temperature of 600 to 1000 ° C, within 5 to 14 seconds, Performing at least two passes of the bar continuously for at least two passes of the at least two molds of the single forging machine to form a body rough blank, the body rough blank comprising the edge material formed by the at least two passes of forging; And cutting off the raw material of the body rough embryo.

In the method for manufacturing a golf club head according to the present invention, the bar is continuously subjected to rough forging, medium forging and fine forging to form the main body rough or continuous forging and fine forging of the bar. To form the bulk rough embryo, or to continuously perform rough forging and medium fine forging of the bar to form the bulk rough embryo.

In the golf club head manufacturing method of the present invention, the bar is preheated to 800 to 1100 ° C, and the at least two passes are continuously continuously performed.

In the golf club head manufacturing method of the present invention, the bar is continuously forged at least twice in a forging pressure of 600 to 1000 tons.

In the method for manufacturing a golf club head according to the present invention, the method further comprises: shaping the surface of the rough blank of the trimmed material and forming a groove.

In the golf club head manufacturing method of the present invention, the bar is continuously rough-forged, medium-forged and fine-forged in the single forging machine, and the single forging machine is provided with a rough forging die and a middle forging die. And a fine forging die.

The golf club head manufacturing method of the present invention, wherein the rough forging die comprises a rough forging male die and a rough forging die, the medium forging die comprising a middle forging male die and a middle forging die, the fine forging die The invention comprises a thin forging male die and a fine forging mastering die, the rough forging male die and the rough forging mastering die, the middle forging male die and the middle forging mastering die, and the fine forging male die and the fine The forging die has a first clamping gap, a second clamping gap and a third clamping gap, and the first clamping gap, the second clamping gap and the third clamping gap are between Between 1~8mm.

In the golf club head manufacturing method of the present invention, the first clamping gap is greater than the second clamping gap, and the second clamping gap is greater than the third clamping gap.

The golf club head manufacturing method of the present invention can eliminate the time and energy required for repeatedly heating the forging by the continuous forging step, thereby achieving the effects of improving process efficiency and reducing cost.

Since the fluidity of the metal can be maintained under high temperature forging, the edge material formed on the surface of the forging by the at least two passes can be partially returned to the mold in the next forging by the continuous forging step. The golf club head manufacturing method of the invention can reduce the wear of the material and achieve the effect of improving the utilization efficiency of the material.

〔this invention〕

1‧‧‧Forging machine

11‧‧‧Rough forging die

11a‧‧‧ rough forging male model

11b‧‧‧ rough forging master

12‧‧‧ medium forging die

12a‧‧‧中锻模模

12b‧‧‧ medium forging die

13‧‧‧Smoulder

13a‧‧‧Slim forging male model

13b‧‧‧Small forging master

G1‧‧‧First clamping gap

G2‧‧‧Second clamping gap

G3‧‧‧ third clamping gap

H‧‧‧ stroke height

Fig. 1 is a schematic view showing the appearance of a forging machine used in the method for producing a golf club head according to the present invention.

Fig. 2 is a schematic view showing the state of the open mold of the forging machine shown in Fig. 1.

Fig. 3 is a schematic view showing the mold clamping state of the forging machine shown in Fig. 1.

The above and other objects, features, and advantages of the present invention will become more apparent from the aspects of the invention. The system comprises: a continuous forging step and a trimming step, thereby obtaining a golf club head for the user to hit a golf ball.

In detail, the continuous forging step is to pass a bar at least two times at a high temperature. The second forging, in order to form a bulk rough embryo, can improve the plasticity of the forging by high-temperature forging, reduce the deformation resistance of the forging, and also make the forging less prone to cracks. In addition, high-temperature forging can refine the metal grains and further enhance The mechanical properties of the forging. It is worth noting that the continuous forging step is to continuously forge the at least two passes of the bar in a period of 5 to 14 seconds; for example, the bar can be continuously forged and finished. Forging and fine forging, or the rough forging and fine forging may be continuously performed on the bar, or the bar may be continuously subjected to rough forging and medium fine forging to form the bulk rough embryo. In this embodiment, the bar is heated to 800~1100 ° C in advance, and the continuous forging step is continued at a temperature of 600-1000 ° C. The temperature of the continuous forging step is higher than 600 ° C, which can be reduced. The forging of the continuous forging step causes the forging to not be subjected to excessive stress to generate cracks, and the temperature of the continuous forging step should not be higher than 1000 ° C, which may cause excessive oxidation of the forging and a problem of decarburization.

The forging pressure of the continuous forging step may be between 600 and 1000 tons, so that the problem that the forging property is not good due to the too small forging is avoided, and the forging is too large to avoid the mold being easily damaged. In this embodiment, The forging system of the continuous forging step is between 600 and 800 tons to achieve a better forming effect.

Further, the continuous forging step can be carried out by using a forging machine 1 as shown in FIGS. 1 to 3, which is provided with a rough forging die 11, a middle forging die 12 and a thin forging die 13, which is thick. The die 11 includes a rough forging die 11a and a rough forging die 11b. The intermediate die 12 includes a middle forging die 12a and a middle forging die 12b. The die forging die 13 includes a thin forging die 13a. And a fine forging die 13b having a stroke height H between the rough forging die 11a and the rough forging die 11b, between the middle forging die 12a and the middle forging die 12b, And the thin forging die 13a and the fine forging die 13b respectively have a first clamping gap G1, a second clamping gap G2 and a third clamping gap G3, the first clamping gap G1, the first The height of the second mold gap G2 and the third mold gap G3 is between 1 and 8 mm, the first mold gap G1 is greater than the second mold gap G2, and the second mold gap G2 is greater than The third clamping gap G3, so that the The use of the forging machine 1 performs the at least two passes of forging, which can shorten the process time and avoid the problem that the time interval between the at least two passes is too long to lower the forging temperature and must be reheated.

Furthermore, although the surface of the forged piece formed between the at least two passes is formed, the next forging can be directly performed, for example, after rough forging, before forging, or for forging. After the fine forging, no additional trimming is performed because of the edge material formed on the surface of the forging, so that in addition to reducing the time consuming of the continuous forging step, the edge material formed on the surface of the forging can also be used next time. Part of the high-temperature forging is returned to the mold, which can reduce the loss of materials and improve the utilization efficiency of the material.

The bulk rough embryo obtained by the continuous forging step comprises the edge material formed by the at least two passes, and in order to remove the edge material, the trimming step may be performed after the continuous forging step to cut off The trimming step of the main body rough blank, the trimming step may be performed in a trimming machine, or a trimming die (not shown) may be disposed in the forging machine 1 as described above, so as to be continuous after the continuous forging step. Perform the trimming step.

After the trimming step, the raw blank of the trimmed material can be subjected to surface shaping and groove forming, for example, fine adjustment of the surface for polishing, and forming a plurality of grooves on the surface, for example, by press forming The plurality of trenches are formed by a material removal method such as a method or a milling method.

In summary, the golf club head manufacturing method of the present invention can eliminate the time and energy required for repeatedly heating the forging by the continuous forging step, thereby achieving the effects of improving process efficiency and reducing cost.

In addition, since the fluidity of the metal can be maintained under high temperature forging, the edge material formed on the surface of the forging by the at least two passes can be partially returned to the next forging by the continuous forging step. In the mold, the golf club head manufacturing method of the invention can reduce the wear of the material and achieve the effect of improving the utilization efficiency of the material.

Although the present invention has been disclosed using the above preferred embodiments, it is not intended to be limiting The present invention is not limited to the spirit and scope of the present invention, and various changes and modifications to the above embodiments are still within the technical scope of the present invention. The scope of protection is subject to the definition of the scope of the patent application attached.

11‧‧‧Rough forging die

11a‧‧‧ rough forging male model

11b‧‧‧ rough forging master

12‧‧‧ medium forging die

12a‧‧‧中锻模模

12b‧‧‧ medium forging die

13‧‧‧Smoulder

13a‧‧‧Slim forging male model

13b‧‧‧Small forging master

G1‧‧‧First clamping gap

G2‧‧‧Second clamping gap

G3‧‧‧ third clamping gap

H‧‧‧ stroke height

Claims (10)

A golf club head manufacturing method comprising: providing a bar; providing a single forging machine having at least two molds; at a temperature of 600 to 1000 ° C, within 5 to 14 seconds, The at least two molds of the single forging machine respectively perform at least two passes of the bar continuously to form a bulk rough embryo, the body rough embryo comprising the edge material formed by the at least two passes of forging; and the trimming The body of the crude embryo is trimmed. The golf club head manufacturing method according to claim 1, wherein the bar is continuously subjected to rough forging, intermediate forging, and fine forging to form the body rough embryo. The golf club head manufacturing method according to claim 1, wherein the bar is continuously subjected to rough forging and fine forging to form the body rough embryo. The golf club head manufacturing method according to claim 1, wherein the bar is continuously subjected to rough forging and medium fine forging to form the body rough embryo. The golf club head manufacturing method according to any one of claims 1 to 4, wherein the bar is preheated to 800 to 1100 ° C, and the at least two passes are continuously continuously performed. The golf club head manufacturing method according to any one of claims 1 to 4, wherein the bar is continuously forged at least twice in a forging pressure of 600 to 1000 tons. The method for manufacturing a golf club head according to any one of claims 1 to 4, further comprising: shaping the surface of the rough blank of the trimmed material and forming a groove. The golf club head manufacturing method according to claim 2, wherein the bar is continuously rough-forged, medium-forged and fine-forged in the single forging machine, and the single forging machine is provided with a thick Forging die, a medium forging die and a thin forging die. The golf club head manufacturing method according to claim 8, wherein the rough forging die The utility model comprises a rough forging male die and a rough forging master die, the medium forging die comprising a middle forging male die and a middle forging mastering die, the fine forging die comprising a fine forging male die and a fine forging mastering die, the rough forging die Between the male mold and the rough forging master, the middle forging male mold and the middle forging female mold, and the thin forging male mold and the fine forging female mold respectively have a first clamping gap and a second joint The mold gap and a third mold gap, the first mold gap, the second mold gap and the third mold gap have a height between 1 and 8 mm. The golf club head manufacturing method of claim 9, wherein the first clamping gap is greater than the second clamping gap, and the second clamping gap is greater than the third clamping gap.