201010817 九、發明說明： 【發明所屬之技術領域】 本發明與由摩擦產生熱的摩擦銲接技術有關，特別是指 一種摩擦攪拌銲接的刀具及銲接結構。 曰 【先前技術】 Φ 使用摩擦授拌的方式將兩金屬（通常為紹）銲接在一起 的方式已公諸於世，首先是由英國銲接研究中心在 _年發表的摩擦祕焊接（FSW)技術，後來有如日本專 利「特許2712838」、專利名稱「摩擦溶接方法」所述的技 術’都是將-高速旋轉的刀具以刀頭插入併合的兩金屬間， 利用刀頭高速旋轉時與兩金屬間因摩擦產生的孰，使兩金屬 與刀頭接觸的部分降伏強度降低而料在低強度的固態，>刀 〇頭又獅聽屬較強㈣㈣科衫，冷較兩金屬的 降伏強度逐漸回復’便將兩金屬銲接成一體； 前述技術中用於摩擦授拌銲接的刀具的刀頭，較常使用 者為圓形的凸柱狀結構，遂使兩金屬進行摩擦攪拌銲接時， 僅有水平方向的授動混合，且因刀頭為圓形，有時還會產生 刀頭無法充錢動兩金屬混合的現象，使兩金屬間只能在降 低降伏強度雜況下冷卻後接合’造成銲接效果與強度不佳 的缺點； 201010817 後來開發出如日本專利「特開平10-249552」、專利名 稱「摩擦溶接方法、裝置及溶接工具（摩擦溶接方法拐上β 裝置並溶接ic使用寸3溶接工具）」的技術，是在刀頭 上成型環狀的凹槽，或是如第1圖所示在圓錐狀的刀頭A上 成型具有螺旋斜面A2的螺旋狀的凹槽A1，且該刀頭A的底 部又連接一肩部B，當如第2圖所示使用該刀頭A以順時針 方向旋轉對兩金屬Cl、C2進行摩檫攪拌銲接的作業時，該 刀頭A會以摩擦熱降低該兩金屬Cl、C2部分的降伏強度， 並如第3圖所示，該刀頭A以該凹槽A1上的螺旋斜面A2攪 動該兩金屬Cl、C2降低降伏強度的部分，使該兩金屬C1、 C2被授動的部分向上移動且混合’而該肩部b又會將該兩 金屬Cl、C2向上移動的部分向下擠壓而流回該兩金屬C1、 C2之間，使該兩金屬Cl、C2在銲接後形成一銲接結構D， 該銲接結構D並呈現如第4圖所示的狀態，其中實際物品的 狀態如附件第1圖，兩端分別為未受影響的母材區D1，向 中間逐漸為受到該刀頭A摩擦熱影響的熱影響區敗，有垂 直移動混合的未動態再結晶區D3，以及位於該銲接結構D 中間的搜拌區D4，藉由該螺旋斜面Μ向上攪動以及該肩部 B向二_讓材料回填的作用使該銲接結構d的區以 並以+洋葱^ C3，令該銲接結構D確實產生混合的現象， 二、+直方向此合加強該銲接結構D的銲接效果與強度； 201010817 不過在前述技射施—段_後發現，若是刀頭以垂直 兩金屬的狀態進行摩_拌銲接，在移動刀具時容易因 過大而造成刀頭斷裂’故又開發出如中華民國專利中請案號 ::494、專利名稱「摩擦攪拌焊接方法與設備及所焊接 的、，，°構」所述的技術，是—移動方向傾斜-角度，讓 ❿ Ο =斜向的角度對兩金屬進行摩擦授拌銲接，藉以降低刀 頭在加工過程中所受的阻力，讓加工更為順暢；* =目前的技術已經發展到在刀頭上成型具螺旋斜面 ^累疋狀的凹槽，且讓刀頭以斜向的角度對兩金屬進行加 頭Α出。本㈢作人在實作上卻發現，由於第1 ®中所示的刀 ==型的凹槽Μ為螺旋狀，並無法延伸至末端的部分， =頭Α在對該兩金屬C1、C2加工時，末端的部分仍 兩1屬I方向的縣混合’尖端更是沒有触的作動，當該 在日4 1 C2被垂直向授動混合形成該銲接結構D，在該 底于^構D的龄區D4產生該洋蔥環c3時，該㈣結構d =該洋葱環C3之間容易因該肩部B擠壓推回的部分材 C4，:路f太長而不及填補，會產生如第5圖所示的缺陷 外里1亥刀頭八為圓錐狀，故仍有該刀頭A水平攪動混合 ，果不佳的缺點； _ _是刀頭A的旋轉方向，改以逆時針方向旋轉， 刀頭A的螺旋斜面A2會將該兩金屬^、以被獅的部分 8 201010817 向下帶動，且該兩金 μn ^ 降伏強度降低的部分也會受 擠壓而向上移動混合 乜曰又 構D時，依缺合你 金屬C1、C2鮮接形成該銲接結 C3而计Γ 銲接轉D的_區M產生1苗環 C3,而该鋅接結構D 平心衣 不;^直；^& 向上移動的部分也容易因材料 不及填補而產生如第6圖所示的缺陷C4. 材钭 ❹ 在成::目前摩擦授拌銲接的技術，雖已達到實用的程声 在成品上部容易有產生該缺 恤度， a. ^ Γλ 4的問通，右要控制到τ + 生5亥缺C4’可能需要調整該 ▲ J不產 度…等許多變數，且經過相當 轉速、則進迷度、長 漸減少該缺陷C4的產生，相二二二计與估异，才能遂 此本創作人就針對該兩金屬ci /、人力與物力，因 動混合效果不佳的問題加_ ㈣不及回填且水平搜 接的刀具及銲接結構。 而開發出—種摩檫捷掉鮮 【發明内容】 本發明目的在提供一 數凸塊使兩金屬塊之間銲接時產:==是利用複 頭並以三平面提升兩金屬機間水平搜該刀具的刀 兩金屬塊械郎接結 、〜效果增建讀 陷。 & #避^辑接結構產生缺 為達前述目的，讀刀具的 員呈錐狀，該刀頭的桎向側 9 201010817 面由三平面及三間隔面圍繞構成，該些平面與該些間隔面交 錯排列，使該些平面的二平面之間分別間隔該一間隔面，該 各間隔面上又成型複數缺口及複數凸塊，該些缺口與該些凸 塊以該刀頭的轴向交錯排列在該間隔面；以該刀具進行摩擦 攪拌銲接的加工，該刀頭便能以該三平面進行攪動以提升混 合效果，且該些間隔面的凸塊還可相互配合攪動而產生複數 洋息极’以縮短該各洋恩壤的材料回填路徑而避免缺陷的產201010817 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a friction welding technique that generates heat by friction, and more particularly to a tool and a welded structure for friction stir welding.曰[Prior Art] Φ The method of welding two metals (usually shovel) by friction stir mixing has been made public, firstly the friction welding (FSW) technology published by British Welding Research Center in _ Later, as described in the Japanese patent "Licensing 2712838" and the patent name "Friction Dissolving Method", the technology of the high-speed rotating tool is inserted into the two metal joints, and the high-speed rotation of the cutter head and the two metals are used. Due to the friction caused by friction, the partial contact strength between the two metals and the cutter head is lowered and is expected to be in a low-intensity solid state, and the scorpion head and the lion's head are stronger (4) (4) the shirt, and the cooling strength of the two metals gradually recovers. 'The two metals are welded together; in the above-mentioned technology, the cutter head for the friction stir welding tool has a circular convex column-like structure, and the two metals are friction stir welding only horizontally. The direction of the transfer is mixed, and because the cutter head is round, sometimes the cutter head can not be charged and the two metals are mixed, so that the two metals can only be cooled under the condition of reducing the drop strength. Bonding 'has the disadvantage of poor soldering effect and strength; 201010817 Later developed the Japanese patent "Special Kaiping 10-249552", patent name "friction melting method, device and welding tool (friction welding method, turning on the beta device and melting ic use) The technique of the inch 3 welding tool) is to form an annular groove on the cutter head, or to form a spiral groove A1 having a spiral bevel A2 on the conical cutter head A as shown in FIG. The bottom of the cutter head A is connected to a shoulder B. When the cutter head A is rotated in the clockwise direction to perform the friction stir welding of the two metals Cl and C2 as shown in FIG. 2, the cutter head A will The frictional heat reduces the fall strength of the two metal Cl, C2 portions, and as shown in FIG. 3, the cutter head A agitates the portions of the two metals Cl and C2 to reduce the strength of the fall by the spiral slope A2 on the groove A1. The portions of the two metals C1, C2 that are actuated are moved up and mixed, and the shoulder b, in turn, squeezes the portion of the two metals C1, C2 upwardly and flows back between the two metals C1, C2. So that the two metals Cl, C2 form a welded joint after welding Structure D, the welded structure D is in a state as shown in Fig. 4, wherein the state of the actual article is as shown in Fig. 1 of the annex, and the two ends are respectively the unaffected base material region D1, and the cutter head is gradually received in the middle. A heat-affected zone affected by frictional heat, a non-dynamic recrystallized zone D3 with vertical moving mixing, and a search zone D4 located in the middle of the welded structure D, with the helical bevel Μ upwardly stirring and the shoulder B facing _ Let the backfilling effect of the material make the area of the welded structure d with + onion ^ C3, so that the welded structure D does produce mixing phenomenon, the second + + direction strengthens the welding effect and strength of the welded structure D; 201010817 However, after the above-mentioned technical application, the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The case number:: 494, the patent name "Friction stir welding method and equipment and the welded,,, and the structure of the structure" is - the direction of the tilt - angle, let ❿ Ο = oblique angle to the two metal Friction mixing Welding, in order to reduce the resistance of the cutter head during processing, so that the processing is smoother; * = The current technology has been developed to form a spiral bevel on the cutter head, and the cutter head is inclined. The angle of the direction of the two metals is topped out. In the third work, the author found that the groove Μ of the knives == shown in the first ® is spiral and cannot extend to the end part, and the head Α is on the two metals C1 and C2. When processing, the end portion is still mixed with two counties in the I direction. The tip is more touchless. When the day 4 1 C2 is vertically fed to form the welded structure D, the bottom is formed. When the age zone D4 produces the onion ring c3, the (four) structure d = the part of the material C4 that is easily pushed back by the shoulder B between the onion ring C3, the road f is too long to be filled, and the The defect shown in Fig. 5 is a conical shape. Therefore, there is still a disadvantage that the cutter head A is horizontally agitated and mixed, and the result is not good; _ _ is the rotation direction of the cutter head A, and is rotated counterclockwise. The spiral bevel A2 of the cutter head A will drive the two metales to be driven downward by the portion 8 201010817 of the lion, and the portions of the two gold μn ^ lowering strengths will also be squeezed and moved upwards to mix and construct. D, according to the lack of metal C1, C2 freshly formed to form the welded joint C3, the weld _ zone M produces 1 seedling ring C3, and the zinc joint structure D The flat heart does not; ^ straight; ^ & the upward movement of the part is also easy to produce due to the material can not be filled to produce the defect C4 as shown in Figure 6. Material in:: The current friction welding technology, although Achieving practical sounds in the upper part of the finished product is easy to produce the degree of disfigurement, a. ^ Γ λ 4, the right to control to τ + raw 5 hai missing C4 ' may need to adjust the ▲ J non-production degree ... and many other variables And after a considerable speed, then entertaining, and gradually reduce the occurrence of the defect C4, phase two and two and estimate, in order to find the creator to deal with the two metal ci /, manpower and material resources, dynamic mixing Problems with poor results plus _ (4) Tool and welding structure that are not as good as backfilling and horizontal search. However, the invention aims to provide a number of bumps for welding between two metal blocks: == is to use the double head and raise the level between the two metal machines by three planes. The cutter's two metal blocks are connected, and the effect is increased. &#避^ 接 结构 产生 产生 , , , , , , , , 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读 读The planes are staggered so that the two planes of the planes are spaced apart from each other, and the plurality of notches and the plurality of bumps are formed on the partitions, and the notches are interlaced with the bumps in the axial direction of the cutter head. Arranged on the spacing surface; the cutter is subjected to the friction stir welding process, the cutter head can be agitated by the three planes to enhance the mixing effect, and the bumps of the spacer faces can also cooperate with each other to generate a plurality of foreign interest Extremely 'to shorten the material backfilling path of each foreign soil to avoid defects
本發明另一目的是藉由前述刀具提供一種摩擦攪拌銲 接的銲接結構，是由兩金屬塊以摩擦攪拌銲接的方式接合形 成，該銲接結構在攪拌區中具有複數洋蔥環，藉增加洋蔥環 的數量以縮小各洋蔥環的尺寸，而能夠減少形成該各洋蔥環 時的材料回填路徑，避免產生缺陷。 為達前述目的，該銲接結構由兩金屬塊摩擦攪拌銲接所 形成，該鮮接結構兩端分別為母材區，由兩端向中間逐漸為 熱影響區及未動態再結晶區，該銲接結構中間為一攪拌區， 該攪拌區並具複數洋蔥環；如此在單一銲接結構上增加洋蔥 環的數量，便能縮小各洋蔥環的尺寸，並縮短形成該各洋蔥 環的材料回填路徑，可避免缺陷的產生。 10 201010817 【實施方式】 本發明摩擦w拌銲接的刀具及銲接結構，其中刀具的實 施例如第7至9圖所示，包含： 刀柄10 —端的周緣成型一肩部〖I ;以及 一刀頭20，呈錐狀且成型在該刀柄10的該端，該刀頭 20的徑向側面由三平面21及三間隔面22圍繞構成，該些 平面21與該些間隔面22交錯排列，使該些平面2ι的二平 面21之間77別間隔該一間隔面22，該各間隔面上又成 型四圓弧狀的缺口 221及四凸塊222,該些缺口 221與該些 凸塊222以該刀碩2〇的軸向交錯排列在該間隔面&，該各 間隔面22的四凸塊222又與另—該間隔面22的四凸塊222 相對位於相同高度，該刀頭2G軸向漸縮的端並具一端面 23’其中-間隔面22向該端㈣成型一斜面2[ ❹ 胃以”亥刀具對兩金屬進行摩擦㈣銲接加卫時，能將兩金 屬鲜接形成如第1G圖所示麟接結構30，其中實際物品的 狀L =附件第2圖’該銲接結構3()兩端分別為母材區31， 由=端向中間逐漸為熱影響區32以及未動態再結晶區33， 該銲接:構3〇中間為一攪拌區％，即該銲接結構別具有 品31 —熱影響區32、二未動態再結晶區33及—攪 拌區"亥攪拌區34並具四洋蔥環35 ; 201010817 該刀具在銲接兩金屬形成該銲接結構3G，是以該刀頭 20的各間隔面22的四凸塊222分別攪動因摩擦熱而降低降 伏強度的部分’由於該刀頭2〇呈錐狀’故該各凸請相 對該刀頭20的轴心會呈傾斜，能使被獅的部分同時產生 水平向與垂直向的移動與混合，並_刀柄㈣肩部心 材料擠回而形成該各洋蔥環35，可知該各洋蔥環奶是由該 些間隔面22位於同高度的凸塊似_所形成，以往只有 單一洋t環’因此材料的回填路徑較長，容易因材料不及回 填而f生缺陷，而將單一洋®環分成該四洋1環35後，該 各洋1環35所需軸_的路徑便縮短，S此能夠達到完 全回填的效果，避免產生缺陷； 且該刀頭20在攪動該銲接結構3〇的攪拌區34時，該 三平面21能夠推擠降伏強度降低的部分移動，因此能徹底Another object of the present invention is to provide a friction stir welding welded structure by the foregoing cutter, which is formed by friction stir welding of two metal blocks having a plurality of onion rings in the stirring zone, by adding onion rings. The number is reduced in size of each onion ring, and the material backfilling path when forming each of the onion rings can be reduced to avoid defects. In order to achieve the above purpose, the welded structure is formed by friction stir welding of two metal blocks, and the two ends of the fresh joint structure are respectively a base material region, and the heat affected zone and the non-dynamic recrystallized zone are gradually formed from the two ends to the middle, and the welded structure is In the middle is a stirring zone, which has a plurality of onion rings; thus increasing the number of onion rings on a single welded structure can reduce the size of each onion ring and shorten the material backfilling path for forming the onion rings, thereby avoiding The generation of defects. 10 201010817 [Embodiment] The tool and the welding structure of the friction w-welding of the present invention, wherein the implementation of the tool is as shown in Figures 7 to 9, including: a peripheral edge of the shank 10 is formed with a shoulder 〖I; and a cutter head 20 a tapered shape and formed at the end of the shank 10, the radial side of the cutting head 20 is surrounded by three planes 21 and three spacing faces 22, and the planes 21 are staggered with the spacing faces 22, so that The two planes 21 of the planes 2i are spaced apart from each other by a spacing surface 22, and the four arcuate notches 221 and the four protrusions 222 are formed on the spacing surfaces, and the notches 221 and the bumps 222 are The axial direction of the knives is alternately arranged on the spacing surface & the four projections 222 of the spacing surfaces 22 are at the same height as the four projections 222 of the other spacing surface 22, and the cutting head 2G is axially The tapered end has an end face 23', wherein the spacer surface 22 forms a bevel 2 to the end (four). [❹ 以 ” ” “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ “ The lining structure 30 shown in Fig. 1G, in which the shape of the actual article L = attachment Fig. 2 'the welded structure 3 () The two ends are respectively the base material region 31, and gradually become the heat-affected zone 32 and the non-dynamic recrystallization zone 33 from the = end to the middle, and the welding: the middle of the structure is a stirring zone %, that is, the welded structure has the product 31 - The heat-affected zone 32, the two non-dynamic recrystallization zone 33, and the agitation zone "the agitating zone 34 have four onion rings 35; 201010817 The tool is formed by welding two metals to form the welded structure 3G, which is each of the cutter heads 20 The four projections 222 of the partition surface 22 respectively agitate the portion which reduces the strength of the fall due to the frictional heat. Since the cutter head 2 is tapered, the projections are inclined with respect to the axial center of the cutter head 20, so that the projections 22 can be inclined. The parts of the lion simultaneously produce horizontal and vertical movement and mixing, and the shank (four) shoulder material is squeezed back to form the onion rings 35, which are known to be at the same height by the spacing faces 22 The bumps are formed like _. In the past, there was only a single ocean t-ring. Therefore, the backfilling path of the material is long, and it is easy to make defects due to material backfilling. After dividing the single ocean® ring into the four oceans and one ring 35, the respective The path of the required axis _ of the Ocean 1 ring 35 is shortened, and this can be achieved completely. Filling effect, to avoid defects; the bit 20 and the agitation 3〇 stirred region 34 when the welded structure, the three-plane 21 can be pushed reduced yield strength portion is moved, it is possible to completely
授動該銲接結構3G的區34，不會有以往使用圓錐狀的 刀頭而攪動效果不佳的問題； 2在該各平面21之間的間隔面22,是為使該各平面21 二有疋程度的厚度以保持結構強度，避免該刀頭20 在進仃摩擦攪料接的加王過程巾，遭遇過大的阻力而斷 =作人更發現，若是該刀頭2{)的該各間隔面22的缺 鉍用圓弧形設計，是讓材料獅過程更順暢，其效果 12 201010817 若是採用方形設計，雖效 比方形設計者佳，但該各缺D 221 果較差，亦能實行本創的技術； 另外該刀頭20的斜面24澴ΰΓ,、，必 AA 將該銲接結構30底部 的部分攪動並向下推擠，使該銲接4 干镬、，，吉構30底部的部分也能 有垂直向的移動產生，以提升銲接效果。 魯 且該刀具還有另—種實施方式，如第11圖所示，該刀 頭20的各間隔面22的四凸塊222與另一該間隔φ 22的四 凸塊222相對位於不同高度，且該各間隔面22的凸塊222 呈傾斜设置，能將兩金屬銲接形成如第12圖所示的銲接結 構30，其中實際物品的狀態如附件第3圖，可知該一間隔 面22的各凸塊222所形成的洋蔥環35會被另一該間隔面 22的各凸塊222所打散，因此原本應形成的該四洋蔥環35, ❾會形成超過四個的洋蔥環35，如第12圖所示的六個洋蔥環 35，也可能成為五個、七個或更多的洋蔥環，但數目必超過 四個，而該各凸塊222又由於呈傾斜設置，故還能提升該刀 具20對於垂直方向的攪動混合效果； 由則述可知’本創主要技術乃是在該刀頭2〇上成型該 平面21及該凸塊222，至於該平面21與該凸塊222的數量 並不影響本創的技術，因此使用僅為數量的改變者’當為本 創保護範圍内。 13 201010817 【圖式簡單說明】 第1圖 習知刀具的立體圖。 第2圖 第3圖 第4圖 第5圖 第6圖 第7圖 第8圖 第9圖 第10圖 第11圖The region 34 of the welded structure 3G is not subjected to the problem that the agitating effect is not good in the past using a conical cutter head; 2 the spacing surface 22 between the planes 21 is such that the planes 21 have The thickness of the crucible is used to maintain the structural strength, avoiding the process of adding the king's process towel to the friction stirrer of the cutter head 20, and encountering excessive resistance and breaking; if it is found, the intervals of the cutter head 2{) The lack of face 22 is designed with a circular arc shape to make the material lion process smoother. The effect is 12 201010817 If the square design is used, although the effect is better than the square design, the lack of D 221 is poor, and the invention can also be implemented. In addition, the bevel 24 of the cutter head 20, and must be agitated to push the bottom portion of the welded structure 30 downward and push the weld 4 to dry, and the bottom portion of the base 30 can also Vertical movement is generated to enhance the welding effect. There is another embodiment of the tool. As shown in FIG. 11, the four bumps 222 of the spacer faces 22 of the tool bit 20 are located at different heights from the other four bumps 222 of the interval φ 22 . And the bumps 222 of the spacer faces 22 are disposed obliquely, and the two metals can be welded to form the welded structure 30 as shown in FIG. 12, wherein the state of the actual article is as shown in the third figure of the attachment, and each of the spacer faces 22 is known. The onion ring 35 formed by the bumps 222 is broken by the bumps 222 of the other spacer surface 22, so that the four onion rings 35, which would otherwise be formed, form more than four onion rings 35, as described above. The six onion rings 35 shown in Fig. 12 may also be five, seven or more onion rings, but the number must be more than four, and the bumps 222 are also inclined, so that the The agitating mixing effect of the cutter 20 for the vertical direction; it is known from the above that the main technique is to form the plane 21 and the bump 222 on the cutter head 2, as for the number of the plane 21 and the bump 222. Does not affect the technology of this creation, so use only the number of changers' as the original insurance Within the scope of protection. 13 201010817 [Simple description of the drawing] Figure 1 A perspective view of a conventional tool. Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11
=知刀具進行摩擦攪拌銲接加工的示意圖。 =知=具對兩金屬進行摩擦_銲接加工的示意圖。 各知銲接結構的示意圖。 U刀具靖針飾而銲麵構產生賴的示意圖。 習知刀具逆時針轉動而銲接結構產生缺陷的示意圖。 本發明實施例刀具的立體圖。 本發明實施例刀具的側視圖。 本發明實施例刀具的仰視圖。 本發明實施例銲接結構的示意圖。 本發明實施例刀具的各間隔面的凸塊位於不同高度且 傾斜的侧視圖。 第12圖本發明實施例用第11圖刀具形成的銲接結構的示意圖。 【主要元件符號說明】 《習知》= Schematic diagram of the tool for friction stir welding. = know = schematic diagram of friction-welding for two metals. A schematic diagram of each known solder structure. A schematic diagram of the U-Tools and the welding surface structure. A schematic diagram of a conventional tool that rotates counterclockwise to produce defects in the welded structure. A perspective view of a tool in accordance with an embodiment of the present invention. A side view of a tool of an embodiment of the invention. A bottom view of the tool of the embodiment of the invention. A schematic view of a welded structure in accordance with an embodiment of the present invention. In the embodiment of the present invention, the bumps of the respective spacer faces of the cutter are located at different heights and inclined side views. Fig. 12 is a schematic view showing a welded structure formed by the cutter of Fig. 11 in the embodiment of the present invention. [Main component symbol description] "Knowledge"
凹槽A1 肩部B 洋蔥環C3 銲接結構D 刀頭A 螺旋斜面A2 金屬Cl、C2 缺陷C4 14 201010817 母材區D1 熱影響區D2 未動態再結晶區D3 攪拌區D4 《本發明》 刀柄10 肩部11 刀頭20 平面21 間隔面22 缺口 221 @凸塊222 端面23 斜面24 銲接結構30 母材區31 熱影響區32 未動態再結晶區33 洋蔥環35 攪拌區34 ❹ 15Groove A1 Shoulder B Onion Ring C3 Welded Structure D Blade A Spiral Bevel A2 Metal Cl, C2 Defect C4 14 201010817 Base Material Zone D1 Heat Affect Zone D2 No Dynamic Recrystallization Zone D3 Stirring Zone D4 "Invention" Tool Holder 10 Shoulder 11 Cutter 20 Plane 21 Spacer 22 Notch 221 @Bump 222 End face 23 Bevel 24 Welded structure 30 Base material zone 31 Heat affected zone 32 Not dynamic recrystallization zone 33 Onion ring 35 Stirring zone 34 ❹ 15