CN103817279A - Titanium or titanium alloy golf ball head part forging method - Google Patents
Titanium or titanium alloy golf ball head part forging method Download PDFInfo
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- CN103817279A CN103817279A CN201410056909.9A CN201410056909A CN103817279A CN 103817279 A CN103817279 A CN 103817279A CN 201410056909 A CN201410056909 A CN 201410056909A CN 103817279 A CN103817279 A CN 103817279A
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Abstract
The invention relates to a titanium or titanium alloy golf ball head part forging method. The method includes after heating forging workpieces including a hitting face, an upper cover or a lower cover of a golf ball head made by titanium or titanium alloy to forging temperature, disposing the forging workpieces in a forging die in a same temperature-increasing area and at forging temperature same as that of the forging workpieces for equal-temperature forge-press forming, and then taking the forging workpieces out of the forging die for cooling. Equal-temperature forging and pressing is performed on the forging workpieces of the golf ball head and the forging die while same forging temperature is maintained, currently conventional forging-pressing small-tonnage equipment can be adopted for processing, forged parts can completely meet quality requirements in terms of process, and consumption of titanium or titanium alloy can be greatly saved, so that cost increase is effectively reduced.
Description
Technical field
The present invention relates to a kind of titanium or titanium alloy golf club head loose mail forging method.
Background technology
A characteristic of titanium or titanium alloy is at high temperature to have superplasticity, and this feature has been used in the making of the complicated titanium alloy part of Aero-Space.Because titanium or titanium alloy density is low, intensity is good, can make club wooden head in golf club and the bulb volume of iron club do greatly, thereby adopt titanium or titanium alloy to make golf club to be widely used.
Because the now design of golf club becomes increasingly complex, make also just more and more difficultly, in order to guarantee the mechanical property of titanium alloy part, heating-up temperature when forging will strictly be controlled.The scope of attack of complex-shaped golf club and upper and lower cover, its resistance of deformation is extremely responsive to deformation temperature and deformation velocity.For example, if adopt general Forging Technology, because being significantly less than this titanium scope of attack and up/down lid etc. conventionally, the temperature of forging mold in forging process forges the forging temperature after workpiece heating, so forging workpiece while forging puts into while forging after forging mold, the actual temperature of forging workpiece will be lower than the forging temperature of process stipulation, and inside and outside non-uniform temperature, and the resistance of deformation of forging workpiece is increased, Plasticity Decreasing, has limited the deflection that forges workpiece.Only have if protect deflection the tonnage that strengthens forging equipment.And due to the very thin thickness of the loose mails such as titanium or the titanium alloy golf club head scope of attack and up/down lid, while using large-tonnage forging equipment to forge, not only forging equipment is fragile, is also easy to damage forging mold, forge difficulty very large.
For this reason, some producer, with improving heating-up temperature, even directly uses gas-heated workpiece on mould.The mode that this raising heating-up temperature is forged does not meet process stipulation, on mould, be directly also that titanium or titanium alloy institute are unallowed with gas-heated, because the heating-up temperature of gas is far away higher than process stipulation temperature, at this moment the inside metallographic of titanium or titanium alloy is underproof, thereby the microstructure of the each parts of titanium bulb that forge can be changed completely, mechanical property reduces, and cannot guarantee mechanical property, brings future trouble to the quality of golf club.If be controlled in the forging range of regulation when to the heating of forging workpiece, current equipment can not be forged out again, because forging add man-hour titanium or titanium alloy component because can cooling in air, what actual like this forging temperature will be lower than 100 ~ 150 ℃ of left and right of forging temperature that stipulate.
Summary of the invention
Given this, the invention provides a kind of titanium or titanium alloy golf club head loose mail forging method, be specifically to make to forge the method that workpiece and forging mold forge under Isothermal Condition, thereby solved satisfactorily the problems referred to above.。
The forging method of titanium of the present invention or titanium alloy golf club head loose mail, that the forging workpiece including the golf club scope of attack, upper cover or the lower cover of titanium or titanium alloy material is heated to after forging temperature, be placed in the forging mold of same heating region and the same forging temperature of this forging workpiece and carry out after isothermal forging moulding, then depanning cooling.Forge and press processing by forging workpiece and forging mold and be placed under the isothermy of same heating region, reduce or eliminate and forged the temperature difference between workpiece and forging mold, even if therefore the resistance of deformation of titanium or titanium alloy loose mail is extremely responsive to deformation temperature and deformation velocity, also can effectively eliminate and forge workpiece and run into after cryogenic forging mould the problem that cooling rapidly and material strain harden, significantly reduce the resistance of deformation of forging workpiece, therefore adopt current little tonnage forging equipment can forge and press out satisfactorily satisfactory golf loose mail, and the investment that can save large equipment, also saved the energy.Operating temperature while forging due to workpiece is all the time in the scope in process stipulation, and therefore the metallographic structure of the forging and stamping golf club scope of attack out meets the requirements completely, and mechanical property reaches standard completely.In order to make forging mold can bear corresponding forging temperature, forging mold should adopt resistant to elevated temperatures material.Forge the mode of heating of workpiece and forging mold and can select arbitrarily existing the whole bag of tricks according to process stipulation.Because method of the present invention is to have utilized the High-temperature Superplasticity of titanium or titanium alloy material, when forging and stamping, be again to carry out Slow Deformation to forging workpiece, therefore in the time making the complicated loose mail such as the golf club scope of attack or upper and lower cover, can also significantly reduce the consumption to titanium or titanium alloy material.
The preferred heating means of one in the above-mentioned isothermal forging of the present invention are, described forging workpiece and forging mold together can be heated to after forging temperature to the isothermal forging moulding described in forging workpiece being carried out by forging mold with press device with electric heater unit.
Wherein, a kind of electrically heated method, can adopt the electric heater unit of the induction coil form that is connected energising with power supply, described forging workpiece and forging mold are heated to after forging temperature jointly to the isothermal forging moulding described in forging workpiece being carried out by forging mold with press device with described induction coil.This electrical heating method, owing to being to heat in open environment, causes energy waste so a lot of heat loses in heating process.Taking out workpiece for safety needs again power operation, then needs again to reheat to reach technological requirement temperature, so wastes energy, and operating efficiency is lower.
Another kind of preferred mode is, described electric heater unit is electric furnace, described forging workpiece and forging mold are together placed in to electric furnace and are heated to after forging temperature, directly carry out described isothermal forging moulding by the forging mold in electric furnace still to forging workpiece with press device.Use immediately press device extrusion forming when forging after workpiece and forging mold reach requirement temperature, directly in burner hearth, the forging workpiece having heated is placed on to the enterprising luggage part of mould and forging and stamping, do not waste energy like this, working (machining) efficiency is also very high.Because press device is positioned at outside electric furnace, be the thermal loss in minimizing electric furnace and the adverse effect to miscellaneous equipment/structure, on forging mold, be provided with corresponding heat insulation and cooling structure, avoid unofficial biography and the leakage of heat.While adopting this kind of mode to heat, can multiple forging workpiece be put into simultaneously simultaneously and add electrothermal stove and heat in the lump, reach after forging temperature, be placed in one by one mould forging forming, can significantly improve forging efficiency.
The above-mentioned forging method of titanium of the present invention or titanium alloy golf club head loose mail, in the time forging, can make to forge workpiece at golf club loose mail and remain identical temperature with forging mold, not only can use the equipment of the little tonnage of forging of current routine to process, and the loose mail forging and pressing out can meet technologic quality requirement completely, and can greatly save the using and consuming of titanium or titanium alloy material, effectively reduce cost.
Below in conjunction with the specific embodiment of embodiment, foregoing of the present invention is described in further detail again.But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following example.Without departing from the idea case in the present invention described above, various replacements or the change made according to ordinary skill knowledge and customary means, all should comprise within the scope of the invention.
Accompanying drawing explanation
Fig. 1 be common forging golf club upper cover schematic diagram.
Fig. 2 is the A-A profile status of the golf upper cover of the common forging of Fig. 1, represents that it has the schematic diagram that protrudes the rough surface of step.
Partial structurtes enlarged diagram in Fig. 3 bitmap 2.
Fig. 4 be forging method of the present invention golf club upper cover schematic diagram.
Fig. 5 is the B-B profile status of the golf upper cover of Fig. 3 forging method of the present invention, represents its smooth surface degree schematic diagram.
Fig. 6 is the metallograph of TC4 titanium alloy.
Fig. 7 is the metallograph of TC4 titanium alloy after common gases heats forged.
Fig. 8 is the metallograph of TC4 titanium alloy after isothermal forging of the present invention.
The specific embodiment
embodiment 1
Titanium of the present invention or titanium alloy golf club head loose mail forging method, by the forging workpiece including the golf club scope of attack, upper cover or the lower cover of titanium or titanium alloy material, together be placed in electric furnace (shown in figure is the forge piece as an example of golf club upper cover example) with punch and the die of corresponding forging mold, in burner hearth, the both sides of forging mold are placed several and are forged workpiece.Fire box temperature (is for example heated to after forging temperature, the forging temperature of TC4 alpha+beta titanium alloys is 950 ℃, the forging temperature of TB9 beta-titanium alloy is 730 ℃ etc.), in burner hearth directly by forge workpiece be placed on forging mold protruding/die between, carry out described isothermal forging moulding by the forging mold in electric furnace still to forging workpiece with press device.Can find out with the golf club upper cover contrast that the employing tradition gas heating method shown in Fig. 1 and Fig. 2 forges:
The golf club superstructure forging at the employing gas heating method shown in Fig. 1 ~ Fig. 3, due to upper cover itself very thin (< 1mm), inner and with hexagon fin structure, and due to forge the temperature of workpiece in forging and stamping process in continuous cooling reduction, and cooling velocity is inconsistent, thereby want forging molding and guarantee that the consistency of thickness of upper cap surface is very difficult, only be improved temperature and just can make required fin and the six side's spills of its inner formation, and its outside six side's convex structures (as shown in Figures 2 and 3) that simultaneously also can form, need wait until the later stage and carry out grinding processing, therefore not only the protruding reinforcement of upper cover inside will be widened, the weight of upper cover is increased, increase the consumption of material, and to use common forging method directly to forge and press out the smooth upper cover in top, must improve the tonnage of forging equipment and improve temperature, but can cause thus forging equipment and forging mold etc. all very easily damaged, also reduced material mechanical performance.
From Fig. 2 and Fig. 3, the upper cover of common forging method, there is projection and in uneven thickness on surface, after forging molding, the upper outstanding part of tops need guarantee that top is shiny surface by manual polishing mode, and manual polishing cannot guarantee that the thickness at surperficial every place is all consistent conventionally, and wear down can bring hidden danger of quality to golf club.
On titanium or the required consumption of titanium alloy material, the start upper cover of bulb of the golf that common forging method is made, generally needing at present materials is 48 grams.As shown in Figures 2 and 3, after its moulding, top ledge need be with manually grinding off to guarantee that top is shiny surface, and material certainly exists waste.Numeral in figure is the gauge (mm) at the workpiece different parts place after forging, and T is the structure of the required reservation of upper cover product, and D, for after forging, needs to be worn away the structure of part in post-production.
Shown in Fig. 4 and Fig. 5 is the golf club upper cover that adopts the above-mentioned isothermal forging mode of the present invention to obtain, because the workpiece in forging and stamping process and mould are all under the Isothermal Condition in same heating region, therefore there is not various unfavorable that non-homogeneous continuous cooling brings, it is very thin that inner reinforcement can do, and adopt little tonnage forging equipment (200 ~ 400 tons of forging presses) can complete forging process, and significantly reduced use and the expendable weight of titanium alloy.
As can be seen from Figure 4, by the upper cover of forging method of the present invention, its surperficial thickness is uniformly, and has good smoothness.Compared with current common forging method, adopt forging method of the present invention to forge same upper cover, materials only need 28 grams, after forging and stamping, upper tops is exactly directly shiny surface, do not need polishing, every upper cover can be saved titanium or titanium alloy material 20g, and saving ratio is up to more than 42%, also make cost significantly reduce, in batches will be more remarkable to the reduction effect of material and cost after suitability for industrialized production.
On the other hand, the titanium alloy product that adopts current commonsense method and said method of the present invention to forge, its inner structure is also completely different.It shown in Fig. 6, is the metallograph under TC4 titanium alloy material state.The metallograph that forges TC4 titanium alloy after common gases heating shown in Fig. 7, it is very thick that its titanium alloy inside metallographic crystal grain becomes, and mechanical property reduces greatly, and its result will make the intensity of the golf club scope of attack very poor, easily breaks at square stance.Shown in Fig. 8 is the TC4 titanium alloy metallograph after said method of the present invention forges, and can know demonstration with Fig. 7 comparison, and the inside metallographic of Fig. 8 is normal, can guarantee the mechanical property of TC4 material completely.
embodiment 2
This example adopts the induction coil that is connected energising with power supply as the electric heater unit heating forging workpiece and forging mold.Described forging workpiece is put into forging mold, together with being heated to after forging temperature in described induction coil, the isothermal forging moulding described in forging workpiece being carried out by forging mold with press device.Though solving equally current titanium or titanium alloy golf club head loose mail, the method forges the problem of existence, the too late embodiment 1 still at present at the aspect such as energy resource consumption and production efficiency.
Claims (4)
1. titanium or titanium alloy golf club head loose mail forging method, it is characterized by: the forging workpiece including the golf club scope of attack, upper cover or the lower cover of titanium or titanium alloy material is heated to after forging temperature, be placed in the forging mold of same heating region and the same forging temperature of this forging workpiece and carry out after isothermal forging moulding, then depanning cooling.
2. the method for claim 1, is characterized by: described forging workpiece and forging mold are together heated to after forging temperature to the isothermal forging moulding described in forging workpiece being carried out by forging mold with press device with electric heater unit.
3. method as claimed in claim 2, it is characterized by: described electric heater unit is the induction coil that is connected energising with power supply, described forging workpiece and forging mold are heated to after forging temperature jointly to the isothermal forging moulding described in forging workpiece being carried out by forging mold with press device with described induction coil.
4. method as claimed in claim 2, it is characterized by: described electric heater unit is electric furnace, described forging workpiece and forging mold are together placed in to electric furnace and are heated to after forging temperature, directly carry out described isothermal forging moulding by the forging mold in electric furnace still to forging workpiece with press device.
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| CN201410056909.9A CN103817279A (en) | 2014-02-20 | 2014-02-20 | Titanium or titanium alloy golf ball head part forging method |
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| CN201410056909.9A CN103817279A (en) | 2014-02-20 | 2014-02-20 | Titanium or titanium alloy golf ball head part forging method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326216A (en) * | 2018-03-01 | 2018-07-27 | 艾诺克(成都)机械制造有限公司 | A kind of thin pieces forging technology of golf iron head |
| CN109201986A (en) * | 2018-07-27 | 2019-01-15 | 艾诺克(成都)机械制造有限公司 | A kind of production method of titanium or titanium alloy golf club head loose mail |
| US11208701B2 (en) | 2016-08-18 | 2021-12-28 | Karsten Manufacturing Corporation | Localized heat treatment |
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| JPH08131582A (en) * | 1994-11-04 | 1996-05-28 | Nenji Tekko Kk | Club head and manufacture of it |
| CN1486765A (en) * | 2003-07-30 | 2004-04-07 | ����ģ | Manufacture of golf club head |
| US20040082405A1 (en) * | 2002-10-18 | 2004-04-29 | Yoshinori Sano | Golf club head and method of manufacturing the same |
| TWI270421B (en) * | 2004-04-27 | 2007-01-11 | Superalloy Ind Co Ltd | Method for forging golf head under a constant temperature |
| CN101239394A (en) * | 2008-03-12 | 2008-08-13 | 贵州钛易科技发展有限责任公司 | Powder metallurgy method of titanium alloy for preparing golf club head |
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- 2014-02-20 CN CN201410056909.9A patent/CN103817279A/en active Pending
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| JPH08131582A (en) * | 1994-11-04 | 1996-05-28 | Nenji Tekko Kk | Club head and manufacture of it |
| US20040082405A1 (en) * | 2002-10-18 | 2004-04-29 | Yoshinori Sano | Golf club head and method of manufacturing the same |
| CN1486765A (en) * | 2003-07-30 | 2004-04-07 | ����ģ | Manufacture of golf club head |
| TWI270421B (en) * | 2004-04-27 | 2007-01-11 | Superalloy Ind Co Ltd | Method for forging golf head under a constant temperature |
| CN101239394A (en) * | 2008-03-12 | 2008-08-13 | 贵州钛易科技发展有限责任公司 | Powder metallurgy method of titanium alloy for preparing golf club head |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11208701B2 (en) | 2016-08-18 | 2021-12-28 | Karsten Manufacturing Corporation | Localized heat treatment |
| US11725253B2 (en) | 2016-08-18 | 2023-08-15 | Karsten Manufacturing Corporation | Localized heat treatment |
| CN108326216A (en) * | 2018-03-01 | 2018-07-27 | 艾诺克(成都)机械制造有限公司 | A kind of thin pieces forging technology of golf iron head |
| CN108326216B (en) * | 2018-03-01 | 2019-08-30 | 艾诺克(成都)机械制造有限公司 | A kind of thin pieces forging technology of golf iron head |
| CN109201986A (en) * | 2018-07-27 | 2019-01-15 | 艾诺克(成都)机械制造有限公司 | A kind of production method of titanium or titanium alloy golf club head loose mail |
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