JP2009167517A - Titanium-aluminum-tin alloy applied to golf club head - Google Patents

Titanium-aluminum-tin alloy applied to golf club head Download PDF

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JP2009167517A
JP2009167517A JP2008077655A JP2008077655A JP2009167517A JP 2009167517 A JP2009167517 A JP 2009167517A JP 2008077655 A JP2008077655 A JP 2008077655A JP 2008077655 A JP2008077655 A JP 2008077655A JP 2009167517 A JP2009167517 A JP 2009167517A
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titanium
aluminum
golf club
tin alloy
club head
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Liang-Ho Tsai
蔡良和
Cheng-Tao Lee
李政道
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MEIAN KOKUSAI GIGYO KOFUN YUGE
Advanced International Multitech Co Ltd
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MEIAN KOKUSAI GIGYO KOFUN YUGE
Advanced International Multitech Co Ltd
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    • 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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C14/00—Alloys based on titanium
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alloy for a golf club head with low density and high extensibility. <P>SOLUTION: Disclosed is a titanium-aluminum-tin alloy containing, by weight, 89 to 95% titanium, 3.5 to 6.5% aluminum and 1.5 to 3.5% tin, and applied to a golf club head. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明はゴルフクラブヘッドのαチタン合金材料に関し、特にチタン、アルミニウムおよびスズを重量％の比率で配合し、ニオブ、バナジウム、モリブデン、ジルコニウム、クロム、鉄、ケイ素、酸素および／または窒素などの微量元素を添加することにより高延伸性を有するゴルフクラブヘッド合金材料に関する。   The present invention relates to an α-titanium alloy material for a golf club head, and in particular, titanium, aluminum and tin are blended in a ratio by weight, and trace amounts such as niobium, vanadium, molybdenum, zirconium, chromium, iron, silicon, oxygen and / or nitrogen are included. The present invention relates to a golf club head alloy material having high stretchability by adding an element.

現在、開発されているゴルフクラブヘッドに用いられる合金は、主にチタン合金材料であり、例えば特許文献１で開示された公知の６Ａｌ−４Ｖ−Ｔｉチタン合金（すなわち、重量％がアルミニウムおよびバナジウムであり、残部をチタン金属とする）のように、その成分は５．５〜６．７５重量％のＡｌ、３．５〜４．５重量％のバナジウム、最大値を０．３重量％とする鉄、および最大値を０．２重量％とする酸素を含むものである。
６Ａｌ−４Ｖ−Ｔｉチタン合金で製造されたゴルフクラブヘッドは、初期のステンレス鋼材料製のクラブヘッドに比べて、弾性変形力が大きく上回り、同じ強度を有し、密度が更に低いといった特性を有しているため、ゴルフクラブヘッドの重量を増やさない前提の下で、ゴルフクラブヘッドの体積を増やし、その最適打球点の面積を相対的に増加させることができて、打球成功率を高めることができる。
また、ステンレス鋼を上回る弾性変形力によって、打球時に比較的大きな弾性変形の能力を提供することができるとともに、比較的大きな弾性変形の程度−伸び率を生成することができるので、ボールがフェースにぶつかるときにもたらされる球体の圧縮変形を相対的に減少させ、打球応力が減衰によって吸収される程度を低減し、打球応力のエネルギー損失を防止して、打球距離をさらに向上させることができる。
米国特許ＵＳ２００６／００４５７８９ Currently used alloys for golf club heads are mainly titanium alloy materials, for example, the known 6Al-4V-Ti titanium alloy disclosed in Patent Document 1 (that is, the weight percentage is aluminum and vanadium). The component is 5.5 to 6.75% by weight Al, 3.5 to 4.5% by weight vanadium, and the maximum value is 0.3% by weight. It contains iron and oxygen with a maximum value of 0.2% by weight.
Golf club heads made of 6Al-4V-Ti titanium alloy have the characteristics that the elastic deformation force is significantly higher, the strength is the same, and the density is lower than club heads made of early stainless steel materials. Therefore, under the premise that the weight of the golf club head is not increased, the volume of the golf club head can be increased, and the area of the optimum hitting point can be relatively increased, thereby increasing the hitting success rate. it can.
In addition, the elastic deformation force exceeding that of stainless steel can provide a relatively large elastic deformation ability at the time of hitting the ball and can generate a relatively large degree of elastic deformation-elongation rate, so that the ball is applied to the face. It is possible to relatively reduce the compressive deformation of the sphere caused when hitting, reduce the degree to which the hitting stress is absorbed by the damping, prevent the energy loss of hitting stress, and further improve the hitting distance.
US Patent US2006 / 0045789

しかし、目下、ゴルフクラブヘッドの体積の大型化および多様化したカスタム化が要求される下で、低密度、高展延性の製品を開発しつつ、本来の機械強度を保ち、設計の許容度を高める必要がある。   However, under the current demand for larger and more diversified customization of golf club heads, while developing low density, highly malleable products, the original mechanical strength is maintained and design tolerances are increased. Need to increase.

本発明は前記した需要に鑑みて成されたもので、本発明が解決しようとする課題は、塑性が高く、展延性が高いチタン−アルミニウム−スズ合金を提供し、ゴルフクラブヘッドの弾性変形の能力を調整することである。
本発明の解決しようとするもう１つの課題は、展延性が高いチタン−アルミニウム−スズ合金を提供し、微量の改質元素の特性を利用して、チタン−アルミニウム−スズ合金を改質し微調整できるようにすることである。 The present invention has been made in view of the above-described demand, and the problem to be solved by the present invention is to provide a titanium-aluminum-tin alloy having high plasticity and high malleability, and capable of elastic deformation of a golf club head. It is to adjust ability.
Another problem to be solved by the present invention is to provide a titanium-aluminum-tin alloy having high ductility and to modify the fineness of the titanium-aluminum-tin alloy by utilizing the characteristics of a small amount of the modifying element. It is to be able to adjust.

前記課題を解決するため、本発明で開示する技術手段は、重量％でチタン８９〜９５％、アルミニウム３．５〜６．５％、スズ１．５〜３．５％を含み、密度範囲を４．２５〜４．４５ｇ／ｃｍ3とするチタン−アルミニウム−スズ合金を提供することである。 In order to solve the above-mentioned problems, the technical means disclosed in the present invention includes 89% to 95% titanium, 3.5% to 6.5% aluminum, and 1.5% to 3.5% tin. It is to provide a titanium-aluminum-tin alloy having a concentration of 4.25 to 4.45 g / cm 3 .

前記本発明のチタン−アルミニウム−スズ合金は、その密度範囲を４．２５〜４．４５ｇ／ｃｍ3とする。 The titanium-aluminum-tin alloy of the present invention has a density range of 4.25 to 4.45 g / cm 3 .

前記本発明のチタン−アルミニウム−スズ合金は、延伸率を１１％〜１５％とし、引張強度を７００〜９５０Ｍｐａとするチタン合金であり、鋳造、鍛造または機械加工により成形する。   The titanium-aluminum-tin alloy of the present invention is a titanium alloy having a draw ratio of 11% to 15% and a tensile strength of 700 to 950 Mpa, and is formed by casting, forging or machining.

本発明で開示するもう１つの技術手段は、重量％でチタン８９％〜９５％、アルミニウム３．５％〜６．５％、スズ１．５〜３．５％、ニオブ≦２％、バナジウム≦２％、モリブデン≦２％、ジルコニウム≦２％、クロム≦２％、鉄≦１％、ケイ素≦１％、酸素≦０．３％および窒素≦０．０５％を含む。   Another technical means disclosed in the present invention is as follows: titanium 89% to 95% by weight, aluminum 3.5% to 6.5%, tin 1.5 to 3.5%, niobium ≦ 2%, vanadium ≦ 2%, molybdenum ≤ 2%, zirconium ≤ 2%, chromium ≤ 2%, iron ≤ 1%, silicon ≤ 1%, oxygen ≤ 0.3% and nitrogen ≤ 0.05%.

前記本発明のチタン−アルミニウム−スズ合金は、その組成の密度範囲を４．２５〜４．４５ｇ／ｃｍ3とするチタン−アルミニウム−スズ合金を提供することである。 The titanium-aluminum-tin alloy of the present invention is to provide a titanium-aluminum-tin alloy having a composition density range of 4.25 to 4.45 g / cm 3 .

本発明はチタン−アルミニウム−スズ合金におけるチタンおよびアルミニウムの含有量が、公知の６Ａｌ−４Ｖ−Ｔｉよりも高く、アルミニウム含有量を高めることは、合金の常温および高温強度を高め、比重を下げ、弾性係数を増加することに対し、顕著な効果がある。
ニオブ、バナジウム、モリブデン、ジルコニウム、クロム、鉄は、β安定化元素であり、６Ａｌ−４Ｖ−Ｔｉに比べ、バナジウムの添加量を大幅に減少させることにより、チタン−アルミニウム−スズ合金の製造コストを下げることができる。
また、本発明は、良好な熱加工成形性を有し、工場で量産しやすく、かつその密度も同類の合金より低いため、ゴルフクラブヘッドの大型化に有利であり、その設計の許容度を高めることができる。 In the present invention, the titanium and aluminum contents in the titanium-aluminum-tin alloy are higher than the known 6Al-4V-Ti, and increasing the aluminum content increases the normal temperature and high temperature strength of the alloy, lowers the specific gravity, There is a significant effect on increasing the elastic modulus.
Niobium, Vanadium, Molybdenum, Zirconium, Chromium, and Iron are β-stabilizing elements. Compared with 6Al-4V-Ti, the amount of vanadium added is greatly reduced, thereby reducing the production cost of titanium-aluminum-tin alloys. Can be lowered.
In addition, the present invention is advantageous in increasing the size of a golf club head because it has good thermoformability, is easily mass-produced in a factory, and its density is lower than that of a similar alloy. Can be increased.

次に図面を参照しながら本発明の優れた実施例について説明する。   Next, an excellent embodiment of the present invention will be described with reference to the drawings.

図１、図２および図３のように、本発明の第１実施例のチタン−アルミニウム−スズ合金の合金元素は、重量％でチタン８９％〜９５％、アルミニウム３．５％〜６．５％およびスズ１．５％〜３．５％を含み、その組成の密度範囲は４．２５〜４．４５ｇ／ｃｍ3であり、延伸率を１１％〜１５％とし、引張強度を７００〜９５０Ｍｐａとするチタン合金で、鋳造、鍛造または機械加工を応用して成形する。 As shown in FIGS. 1, 2 and 3, the alloy elements of the titanium-aluminum-tin alloy of the first embodiment of the present invention are 89% to 95% titanium and 3.5% to 6.5% aluminum by weight. % And tin of 1.5% to 3.5%, the density range of the composition is 4.25 to 4.45 g / cm 3 , the stretch ratio is 11% to 15%, and the tensile strength is 700 to 950 MPa. This titanium alloy is formed by casting, forging or machining.

本発明はまた、ニオブ、バナジウム、ジルコニウム、クロム、モリブデン、鉄、ケイ素、酸素および窒素などの元素からなる群より選択される微量の改質元素を添加することにより、その特性を調整することができる。
例えば、微量のニオブを添加することにより、その延伸特性は下げずに、合金の強度を高めることができる。
バナジウムの添加量を相対的に下げることにより、本来の合金の機械的性質には影響を及ぼさずに、鋳造時の流動性および補助脱気効果を高めることができる。
微量のモリブデンを添加することにより、均一に分布した炭化物を合金に析出させ、耐熱性を高め、合金の溶接熱亀裂現象を減少させることができ、合金の硬化能力および高温強度を増加させることもできる。
微量のジルコニウムを添加することにより、成形後の合金の熱処理時に材料の強度を高め、変形しにくくすることができ、さらにモリブデンを添加することにより、高強度および高靭性を形成することができる。
適量のクロムを添加することにより、合金の防錆耐食性を高め、ゴルフクラブヘッドの使用寿命を増加させることができる。
微量の鉄を添加することにより、良好な塑性をもたせ、加工処理をしやすくすることができる。
微量のケイ素を添加することにより、溶融金属の流動性を改善することができる。
本発明において選択する添加改質元素のうち、その含有量の比率は、ニオブ≦２％、バナジウム≦２％、モリブデン≦２％、ジルコニウム≦２％、クロム≦２％、鉄≦１％、ケイ素≦１％、酸素≦０．３％および窒素≦０．０５％とする。 The present invention can also adjust its characteristics by adding a trace amount of a modifying element selected from the group consisting of elements such as niobium, vanadium, zirconium, chromium, molybdenum, iron, silicon, oxygen and nitrogen. it can.
For example, by adding a small amount of niobium, the strength of the alloy can be increased without lowering its drawing characteristics.
By relatively reducing the amount of vanadium added, the fluidity and auxiliary degassing effect during casting can be enhanced without affecting the mechanical properties of the original alloy.
By adding a small amount of molybdenum, uniformly distributed carbides can be precipitated in the alloy, heat resistance can be improved, weld thermal cracking phenomenon of the alloy can be reduced, and the hardening ability and high temperature strength of the alloy can be increased. it can.
By adding a small amount of zirconium, it is possible to increase the strength of the material at the time of heat treatment of the alloy after forming and make it difficult to deform. Furthermore, by adding molybdenum, high strength and high toughness can be formed.
By adding an appropriate amount of chromium, it is possible to increase the anticorrosion resistance of the alloy and increase the service life of the golf club head.
By adding a small amount of iron, it is possible to give good plasticity and facilitate processing.
By adding a small amount of silicon, the fluidity of the molten metal can be improved.
Among the additive-modifying elements selected in the present invention, the content ratio is as follows: niobium ≦ 2%, vanadium ≦ 2%, molybdenum ≦ 2%, zirconium ≦ 2%, chromium ≦ 2%, iron ≦ 1%, silicon ≦ 1%, oxygen ≦ 0.3% and nitrogen ≦ 0.05%.

本発明の比較的優れた実施例並びに公知の６Ａｌ−４Ｖ−Ｔｉチタン合金の特性の比較は、次の表１のとおりである。   Table 1 below compares the properties of the comparatively excellent examples of the present invention and the known 6Al-4V-Ti titanium alloys.

公知の６Ａｌ４Ｖ−Ｔｉ合金に比べ、本発明は、バナジウム元素の含有量を下げることにより、合金密度を下げ、その靭性を増加させ、低密度の特性を保ちながら、優れた展延性、塑性を得ることができる。   Compared to known 6Al4V-Ti alloys, the present invention reduces the vanadium element content, thereby lowering the alloy density, increasing its toughness, and maintaining excellent low ductility and plasticity. be able to.

本発明の実施例と公知のチタン合金の元素組成の比較表は、次の表２のとおりである。   A comparison table of elemental compositions of the examples of the present invention and known titanium alloys is shown in Table 2 below.

前記実施例の合金材料は、チタン−アルミニウム−スズ合金を主要合金とし、延伸率を１１〜１５％（８％以上）とし、引張強度を７００〜９５０（６５０Ｍｐａ以上）とするチタン合金であり、鋳造、鍛造、機械加工により成形する。   The alloy material of the embodiment is a titanium alloy having a titanium-aluminum-tin alloy as a main alloy, a stretching ratio of 11 to 15% (8% or more), and a tensile strength of 700 to 950 (650 Mpa or more). Molded by casting, forging and machining.

本発明は、強度および展延性が比較的高く、ゴルフクラブヘッドの本体およびフェースとするのに適しており、またもちろんその他の剛性の比較的優れた材料をフェースとすることができる。
その材料組成は、６Ａｌ−４Ｖ−Ｔｉチタン合金、βチタン合金などとし、鋳造、鍛造、機械加工により成形することができる。
本発明の展延性が高い本体を強度が高いフェース材料と組み合わせ、本体内部における構造設計をウェイトバランス構造とリブ設計で補うことにより、打感がよく（制振性がよく）、制球性がよく、かつネック角を調整してカスタム化することが可能なゴルフクラブヘッド製品を達成することができる。
本発明の８Ａｌ−Ｔｉと公知の６Ａｌ−４Ｖ−Ｔｉの加工性能の比較表は表３のとおりである。 The present invention has a relatively high strength and spreadability, is suitable for use as a body and face of a golf club head, and of course, other materials having relatively high rigidity can be used as the face.
The material composition is 6Al-4V-Ti titanium alloy, β titanium alloy, or the like, which can be formed by casting, forging, or machining.
By combining the highly malleable body of the present invention with a face material with high strength and supplementing the structure design inside the body with a weight balance structure and rib design, the feel is good (good vibration control) and ball control is good. In addition, a golf club head product that can be customized by adjusting the neck angle can be achieved.
Table 3 shows a comparison table of processing performance between 8Al-Ti of the present invention and known 6Al-4V-Ti.

また、本発明は、５Ａｌ−２．５Ｓｎ−Ｔｉ材料を実施例としてゴルフクラブヘッド本体を製造してから、ＳＰ７００高強度チタン合金をフェースとして溶接し、発射装置専用ゴルフボール（ボールの仕様は９０）を、５５．８ｍ／ｓの発射速度にて、３０００発を発射して試験し、フェースとヘッド本体を目視検査し、探傷検査した結果、割れおよびひびがなかった。   Further, in the present invention, a golf club head body is manufactured by using 5Al-2.5Sn-Ti material as an example, and then SP700 high-strength titanium alloy is welded as a face. ) Was fired at 55.8 m / s and fired at 3000 shots, and the face and head body were visually inspected and flaw-detected. As a result, no cracks or cracks were found.

以上の記載内容は本発明の比較的優れた実施例の記載であって、本発明の実施範囲を限定するためのものではない。本発明の特許請求の範囲に従って行なわれた同等の変更および修飾は、いずれも本発明の特許範囲に含まれるものである。   The above description is a description of a relatively excellent embodiment of the present invention, and is not intended to limit the scope of the present invention. All equivalent changes and modifications made in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

本発明のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金の実施例の５０倍拡大金相図である。It is a 50-times enlarged gold phase diagram of the Example of the titanium-aluminum-tin alloy applied to the golf club head of this invention. 本発明のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金の実施例の１００倍拡大金相図である。It is a 100 times expansion metal phase figure of the Example of the titanium-aluminum-tin alloy applied to the golf club head of this invention. 本発明のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金の実施例の２００倍拡大金相図である。It is a 200 times enlarged gold phase diagram of the Example of the titanium-aluminum-tin alloy applied to the golf club head of this invention.

Claims (13)

重量％でチタン８９％〜９５％、アルミニウム３．５％〜６．５％、およびスズ１．５％〜３．５％を含むゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   Titanium-aluminum-tin alloy applied to golf club heads containing 89% to 95% titanium by weight, 3.5% to 6.5% aluminum, and 1.5% to 3.5% tin. 前記チタン−アルミニウム−スズ合金の組成の密度範囲を４．２５〜４．４５ｇ／ｃｍ3とする請求項１に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。 2. The titanium-aluminum-tin alloy applied to the golf club head according to claim 1, wherein a density range of the composition of the titanium-aluminum-tin alloy is 4.25 to 4.45 g / cm 3 . 前記チタン−アルミニウム−スズ合金は、延伸率を１１％〜１５％とし、引張強度を７００〜９５０Ｍｐａとするチタン合金であり、鋳造、鍛造または機械加工を応用して成形する請求項１に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   The titanium-aluminum-tin alloy is a titanium alloy having a draw ratio of 11% to 15% and a tensile strength of 700 to 950 Mpa, and is formed by applying casting, forging, or machining. Titanium-aluminum-tin alloy applied to golf club heads. 前記チタン−アルミニウム−スズ合金は、ニオブ、バナジウム、モリブデン、ジルコニウム、クロム、鉄、ケイ素、酸素および窒素からなる群より選択される改質元素をさらに含む請求項１に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   2. The golf club head according to claim 1, wherein the titanium-aluminum-tin alloy further includes a modifying element selected from the group consisting of niobium, vanadium, molybdenum, zirconium, chromium, iron, silicon, oxygen, and nitrogen. Titanium-aluminum-tin alloy. 前記改質元素がニオブ２％以下を含む請求項４に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   The titanium-aluminum-tin alloy applied to the golf club head according to claim 4, wherein the modifying element contains 2% or less of niobium. 前記改質元素がバナジウム２％以下を含む請求項４に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   The titanium-aluminum-tin alloy applied to the golf club head according to claim 4, wherein the modifying element contains 2% or less of vanadium. 前記改質元素がモリブデン２％以下を含む請求項４に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   The titanium-aluminum-tin alloy applied to the golf club head according to claim 4, wherein the modifying element contains 2% or less of molybdenum. 前記改質元素がジルコニウム２％以下を含む請求項４に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   The titanium-aluminum-tin alloy applied to the golf club head according to claim 4, wherein the modifying element contains 2% or less of zirconium. 前記改質元素が鉄１％以下を含む請求項４に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   The titanium-aluminum-tin alloy applied to the golf club head according to claim 4, wherein the modifying element contains 1% or less of iron. 前記改質元素がケイ素１％以下を含む請求項４に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   The titanium-aluminum-tin alloy applied to the golf club head according to claim 4, wherein the modifying element contains 1% or less of silicon. 前記改質元素が酸素０．３％以下を含む請求項４に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   The titanium-aluminum-tin alloy applied to the golf club head according to claim 4, wherein the modifying element contains 0.3% or less of oxygen. 前記改質元素が窒素０．０５％以下を含む請求項４に記載のゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   The titanium-aluminum-tin alloy applied to the golf club head according to claim 4, wherein the modifying element contains 0.05% or less of nitrogen. 重量％でチタン８９％〜９５％、アルミニウム３．５％〜６．５％、スズ１．５％〜３．５％、ニオブ≦２％、バナジウム≦２％、モリブデン≦２％、ジルコニウム≦２％、クロム≦２％、鉄≦１％、ケイ素≦１％、酸素≦０．３％および窒素≦０．０５％を含むゴルフクラブヘッドに応用するチタン−アルミニウム−スズ合金。   Titanium 89% -95% by weight, aluminum 3.5% -6.5%, tin 1.5% -3.5%, niobium ≦ 2%, vanadium ≦ 2%, molybdenum ≦ 2%, zirconium ≦ 2 %, Chromium ≦ 2%, iron ≦ 1%, silicon ≦ 1%, oxygen ≦ 0.3% and nitrogen ≦ 0.05%.
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