JP2008137096A - Cutting tool and its manufacturing method - Google Patents

Cutting tool and its manufacturing method Download PDF

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JP2008137096A
JP2008137096A JP2006323929A JP2006323929A JP2008137096A JP 2008137096 A JP2008137096 A JP 2008137096A JP 2006323929 A JP2006323929 A JP 2006323929A JP 2006323929 A JP2006323929 A JP 2006323929A JP 2008137096 A JP2008137096 A JP 2008137096A
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cutting tool
blade
shank
cutting
manufacturing
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JP4464953B2 (en
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Kazuo Hoshino
和男 星野
Takashi Wakai
隆 若井
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Union Tool Co
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Union Tool Co
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting tool having performance similar to that of a brand-new article and capable of being inexpensively manufactured by reusing a shank making up the most part of the cutting tool approximately as it is. <P>SOLUTION: A manufacturing method of the cutting tool having a blade unit 3 including a blade 1 having a cutting edge for cutting a material to be cut formed at the tip and having the shank 2 carried by a tool holder at a base end includes the steps of removing at least the blade from the cutting tool and then joining the blade unit 3 including the blade 1 having the cutting edge formed at the tip of the shank 2 of the cutting tool whose blade unit is removed, to thereby manufacture the cutting tool by reusing the shank 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、切れ刃が摩耗した切削工具のシャンク部を利用した切削工具及びその製造方法に関するものである。   The present invention relates to a cutting tool using a shank portion of a cutting tool with worn cutting edges and a method for manufacturing the cutting tool.

例えば、ドリルやエンドミル等の、先端側に被切削物を切削する切れ刃が形成された刃部を有し基端側に工具ホルダに保持されるシャンク部を有する切削工具は、その切れ刃が摩耗して切削性能が低下する度に、該切れ刃（刃部）を研磨することで初期の切削性能を回復させているが、研磨を数回繰り返し、研磨代がなくなると、もはや研磨は不可能となり廃棄される。   For example, a cutting tool such as a drill or an end mill, which has a blade portion formed with a cutting edge for cutting a workpiece on the distal end side and a shank portion held by a tool holder on the proximal end side, has the cutting edge Every time the cutting performance deteriorates due to wear, the cutting edge (blade part) is polished to recover the initial cutting performance. It becomes possible and discarded.

ところで、近年の切削工具には、切削性能や耐摩耗性を向上させるため、Ｗ，Ｃｏ，Ｍｏ等の高価な希少金属が含まれており、できるだけ長く活用したいという要望が強い。   By the way, in order to improve cutting performance and wear resistance in recent years, expensive rare metals such as W, Co, and Mo are included, and there is a strong demand for utilizing them as long as possible.

そこで、例えば特許文献１には、研磨代のなくなった切削工具を一回り小さい切削工具に形成することで再利用を図る技術が開示されている。   Thus, for example, Patent Document 1 discloses a technique for reusing a cutting tool that has no grinding allowance by forming it into a smaller cutting tool.

特開２００４−３２２２４１号公報JP 2004-322241 A

しかしながら、上記特許文献１に開示される技術では、徐々に径小な切削工具としてしか再利用することができず、また、特に、切削工具の大部分を占めるシャンク部を大きく削る必要があり、充分な切削工具の再利用が図られているとは言い難い。   However, in the technique disclosed in Patent Document 1, it can be reused only as a cutting tool with a gradually reduced diameter, and in particular, it is necessary to greatly cut the shank portion that occupies most of the cutting tool, It is hard to say that enough cutting tools are being reused.

本発明は、上述のような現状に鑑み、切削工具の大部分を占めるシャンク部を略そのまま再利用して新品と同等の性能を有するコスト安に製造可能な切削工具及びその製造方法を提供するものである。   In view of the present situation as described above, the present invention provides a cutting tool that can be manufactured at a low cost and has performance equivalent to that of a new article by reusing a shank portion that occupies most of the cutting tool as it is, and a manufacturing method thereof. Is.

添付図面を参照して本発明の要旨を説明する。   The gist of the present invention will be described with reference to the accompanying drawings.

先端側に被切削物を切削する切れ刃が形成された刃部１を具備する刃体３を有し、基端側に工具ホルダに保持されるシャンク部２を有する切削工具であって、前記シャンク部２は、刃部が摩耗した切削工具から該刃部が除去されたシャンク部２であり、このシャンク部２の先端側には前記刃体３が接合されているものであることを特徴とする切削工具に係るものである。   A cutting tool having a blade body 3 having a blade portion 1 formed with a cutting edge for cutting a workpiece on the distal end side, and having a shank portion 2 held by a tool holder on the proximal end side, The shank part 2 is the shank part 2 from which the blade part has been removed from the cutting tool with the worn blade part, and the blade body 3 is joined to the tip side of the shank part 2. This relates to the cutting tool.

また、請求項１記載の切削工具において、前記シャンク部２として、前記刃部が摩耗した切削工具のシャンク部２から前記刃部及び該シャンク部２の先端側の一部を切断除去したものが採用されていることを特徴とする切削工具に係るものである。   The cutting tool according to claim 1, wherein the shank portion 2 is obtained by cutting and removing the blade portion and a part of the tip end side of the shank portion 2 from the shank portion 2 of the cutting tool with which the blade portion is worn. The present invention relates to a cutting tool characterized by being adopted.

また、請求項２記載の切削工具において、前記シャンク部２の先端には径小部６が形成されていることを特徴とする切削工具に係るものである。   Moreover, the cutting tool of Claim 2 WHEREIN: The small diameter part 6 is formed in the front-end | tip of the said shank part 2, It concerns on the cutting tool characterized by the above-mentioned.

また、請求項１〜３いずれか１項に記載の切削工具において、前記シャンク部２と前記刃体３とはロウ付けにより接合されていることを特徴とする切削工具に係るものである。   The cutting tool according to any one of claims 1 to 3, wherein the shank portion 2 and the blade body 3 are joined by brazing.

また、請求項１〜４いずれか１項に記載の切削工具において、前記刃体３として、前記シャンク部２に比し同等若しくは高強度の超硬合金製材料若しくは金属製材料から成るものが採用されていることを特徴とする切削工具に係るものである。   The cutting tool according to any one of claims 1 to 4, wherein the blade body 3 is made of a cemented carbide material or metal material that is equivalent to or higher in strength than the shank portion 2. The present invention relates to a cutting tool characterized in that

また、先端側に被切削物を切削する切れ刃が形成された刃部１を具備する刃体３を有し、基端側に工具ホルダに保持されるシャンク部２を有する切削工具の製造方法であって、切削工具から少なくとも刃部を除去し、続いて、この刃部が除去された切削工具のシャンク部２の先端側に切れ刃が形成された刃部１を具備する刃体３を接合することで、前記シャンク部２を再利用して切削工具を製造することを特徴とする切削工具の製造方法に係るものである。   Moreover, it has the blade body 3 which comprises the blade part 1 in which the cutting edge which cuts a to-be-cut object in the front end side was formed, and the manufacturing method of the cutting tool which has the shank part 2 hold | maintained at a tool holder at the base end side Then, at least the blade portion is removed from the cutting tool, and then the blade body 3 including the blade portion 1 having the cutting edge formed on the tip side of the shank portion 2 of the cutting tool from which the blade portion has been removed is provided. By joining, the said shank part 2 is reused and a cutting tool is manufactured, It concerns on the manufacturing method of the cutting tool characterized by the above-mentioned.

また、請求項６記載の切削工具の製造方法において、前記刃部が除去された切削工具のシャンク部２の先端側に切れ刃が形成されていない前記刃体３を接合した後、この刃体３に切れ刃を形成して刃部１を具備せしめることを特徴とする切削工具の製造方法に係るものである。   Moreover, in the manufacturing method of the cutting tool of Claim 6, after joining the said blade body 3 in which the cutting blade is not formed in the front end side of the shank part 2 of the cutting tool from which the said blade portion was removed, this blade body The present invention relates to a method for manufacturing a cutting tool, characterized in that a cutting edge is formed in 3 and the blade portion 1 is provided.

また、請求項６，７いずれか１項に記載の切削工具の製造方法において、前記刃部を除去する際、前記切削工具のシャンク部２から前記刃部及び該シャンク部２の先端側の一部を切断除去することを特徴とする切削工具の製造方法に係るものである。   Furthermore, in the method for manufacturing a cutting tool according to any one of claims 6 and 7, when the blade portion is removed, the blade portion and the tip side of the shank portion 2 are separated from the shank portion 2 of the cutting tool. The present invention relates to a method for manufacturing a cutting tool characterized by cutting and removing a portion.

また、請求項８記載の切削工具の製造方法において、前記シャンク部２の先端側に切れ刃が形成された刃部１を具備する刃体３を接合した後、該シャンク部２の先端に径小部６を形成することを特徴とする切削工具の製造方法に係るものである。   Further, in the method for manufacturing a cutting tool according to claim 8, after joining the blade body 3 including the blade portion 1 having a cutting edge formed on the tip end side of the shank portion 2, the diameter is applied to the tip of the shank portion 2. The present invention relates to a method for manufacturing a cutting tool characterized by forming the small portion 6.

また、請求項６〜９いずれか１項に記載の切削工具の製造方法において、前記刃体３として、該刃体３接合後の切削工具全長が、前記刃部除去前の切削工具全長以上となる長さを有する刃体３が採用されていることを特徴とする切削工具の製造方法に係るものである。   Moreover, in the manufacturing method of the cutting tool of any one of Claims 6-9, as the said blade body 3, the cutting tool full length after this blade body 3 joining is more than the cutting tool full length before the said blade part removal, The present invention relates to a method for manufacturing a cutting tool, in which a blade body 3 having a length is employed.

また、請求項６〜１０いずれか１項に記載の切削工具の製造方法において、前記刃部が除去された切削工具と前記刃体３とをロウ付けにより接合することを特徴とする切削工具の製造方法に係るものである。   Moreover, in the manufacturing method of the cutting tool of any one of Claims 6-10, the cutting tool from which the said blade part was removed, and the said blade body 3 are joined by brazing, The cutting tool characterized by the above-mentioned. It relates to a manufacturing method.

また、請求項６〜１１いずれか１項に記載の切削工具の製造方法において、前記刃体３として、前記シャンク部２に比し同等若しくは高強度の超硬合金製材料若しくは金属製材料から成るものが採用されていることを特徴とする切削工具の製造方法に係るものである。   Moreover, in the manufacturing method of the cutting tool of any one of Claims 6-11, compared with the said shank part 2, the said blade body 3 consists of a cemented carbide material or metal material equivalent or high intensity | strength. The present invention relates to a method for manufacturing a cutting tool, characterized in that one is employed.

本発明は上述のようにしたから、切削工具の大部分を占めるシャンク部を略そのまま再利用して新品と同等の性能を有するコスト安に製造可能な切削工具及びその製造方法となる。   Since the present invention has been described above, a shank portion that occupies most of the cutting tool is reused as it is, and a cutting tool that can be manufactured at a low cost with performance equivalent to that of a new product and a manufacturing method thereof.

好適と考える本発明の実施形態を、図面に基づいて本発明の作用を示して簡単に説明する。   An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

刃部が除去された切削工具のシャンク部２の先端側に、切れ刃が形成された刃部１を具備する刃体３を接合することで、本来廃棄される切削工具のシャンク部２を略そのまま再利用して新たな切削工具を製造でき、従って、新品と同等の切削性能を発揮可能な切削工具をコスト安に製造可能となる。   The shank part 2 of the cutting tool that is originally discarded is bonded to the tip side of the shank part 2 of the cutting tool from which the blade part has been removed by joining the blade body 3 having the blade part 1 formed with the cutting edge. A new cutting tool can be manufactured by reuse as it is, and therefore a cutting tool capable of exhibiting cutting performance equivalent to that of a new product can be manufactured at low cost.

本発明の具体的な実施例について図面に基づいて説明する。   Specific embodiments of the present invention will be described with reference to the drawings.

本実施例は、先端側に被切削物を切削する切れ刃が形成された刃部１を具備する刃体３を有し、基端側に工具ホルダに保持されるシャンク部２を有する切削工具の製造方法であって、前記切れ刃が摩耗した切削工具から少なくとも刃部を除去し、続いて、この刃部が除去された切削工具のシャンク部２の先端側に切れ刃が形成された刃部１を具備する刃体３を接合することで、前記シャンク部２を再利用して切削工具を製造するものである。   This embodiment has a blade body 3 having a blade portion 1 formed with a cutting edge for cutting a workpiece on the distal end side, and a shank portion 2 held on a proximal end side by a tool holder. The manufacturing method according to claim 1, wherein at least the blade portion is removed from the cutting tool on which the cutting blade is worn, and then the cutting blade is formed on the tip side of the shank portion 2 of the cutting tool from which the cutting portion has been removed. The cutting tool is manufactured by reusing the shank portion 2 by joining the blade body 3 having the portion 1.

本実施例は、一の超硬合金製のソリッド材を研削加工等で除去加工することで形成された切削工具を再利用して新たな切削工具を製造するものであり、具体的には、切り屑排出溝や切れ刃が形成された刃部７と、所定径に加工されたシャンク部２と、この刃部７とシャンク部２とを連設するテーパ部４とを有する切削工具のシャンク部２を再利用して新たな切削工具を製造する。   In this embodiment, a new cutting tool is manufactured by reusing a cutting tool formed by removing a solid material made of one cemented carbide by grinding or the like. Specifically, A shank of a cutting tool having a blade portion 7 in which a chip discharge groove and a cutting edge are formed, a shank portion 2 machined to a predetermined diameter, and a tapered portion 4 that continuously connects the blade portion 7 and the shank portion 2. The part 2 is reused to produce a new cutting tool.

具体的には、先ず、（切れ刃が摩耗して再研磨も不可能となった）切削工具のシャンク部２から先端側を、刃部７全部，テーパ部４全部及びシャンク部２の一部を除去するように切断する(図１(ａ)→図１(ｂ))。   Specifically, first, the cutting edge is worn away from the shank part 2 of the cutting tool (the cutting edge is worn away, and the entire cutting part 7, the entire taper part 4, and a part of the shank part 2). (FIG. 1 (a) → FIG. 1 (b)).

続いて、シャンク部２の先端面とシャンク径より稍径大の刃体３の基端面とを、ロウ付け、具体的には銀ロウを用いた銀ロウ付けにより接合する(図１(ｂ)→図１(ｃ))。尚、銀ロウ付けに限らず、他の接合方法を採用しても良い。   Subsequently, the distal end surface of the shank portion 2 and the proximal end surface of the blade body 3 having a diameter larger than the shank diameter are joined by brazing, specifically, silver brazing using silver brazing (FIG. 1B). → Fig. 1 (c)). In addition, you may employ | adopt not only silver brazing but another joining method.

従って、切削工具の最も径大なシャンク部２と刃体３とを接合でき、接合面積が大きくなるので、シャンク部２と刃体３との接合一体化が良好に行われることになる。   Therefore, since the shank part 2 and the blade body 3 having the largest diameter of the cutting tool can be joined and the joining area becomes large, the joining and integration of the shank part 2 and the blade body 3 can be performed satisfactorily.

刃体３としては、シャンク部２に比し同等若しくは高強度の超硬合金製材料が採用されている。従って、例えば高強度の超硬合金製材料を採用した場合には、より良好な切削性能・耐久性を発揮できる切れ刃を形成するため、シャンク部２に比し高価な高強度の超硬合金製材料を刃体３として採用しても、シャンク部２の長さ分だけ材料コストを低減できることになる。尚、刃体３はシャンク部２と同材料製としても良い。   As the blade body 3, a cemented carbide material having the same or higher strength than the shank portion 2 is employed. Therefore, for example, when a high-strength cemented carbide material is employed, a high-strength cemented carbide that is more expensive than the shank portion 2 is formed in order to form a cutting edge that can exhibit better cutting performance and durability. Even if the manufacturing material is adopted as the blade body 3, the material cost can be reduced by the length of the shank portion 2. The blade body 3 may be made of the same material as the shank portion 2.

続いて、刃体３及びシャンク部２に所望の加工を施す(図１(ｃ)→図１(ｄ))。具体的には、本実施例においては、刃体３は、シャンク部２に接合する前の状態では単に棒状に加工された状態で切り屑排出溝や切れ刃等は形成されておらず、該刃体３接合後の切削工具全長が前記刃部７除去前の切削工具全長以上となる長さに設定されている。   Subsequently, desired processing is performed on the blade body 3 and the shank portion 2 (FIG. 1 (c) → FIG. 1 (d)). Specifically, in the present embodiment, the blade body 3 is simply processed into a rod shape in a state before being joined to the shank portion 2, and a chip discharge groove and a cutting blade are not formed. The entire length of the cutting tool after joining the blade body 3 is set to a length that is equal to or longer than the entire length of the cutting tool before the blade portion 7 is removed.

この刃体３をシャンク部２に接合後、長さを刃部７除去前の工具全長と刃体３接合後の工具全長とが略同じとなる長さに設定すると共に切れ刃等を形成する。この際、必要であれば、刃体３の切れ刃等が形成される先端部と、シャンク部２と連設する刃体３の基端部との間にテーパ部５も形成する。   After this blade body 3 is joined to the shank portion 2, the length is set to a length such that the overall length of the tool before removal of the blade portion 7 and the overall length of the tool after joining the blade body 3 are substantially the same, and a cutting blade or the like is formed. . At this time, if necessary, a tapered portion 5 is also formed between a tip end portion where the cutting edge or the like of the blade body 3 is formed and a proximal end portion of the blade body 3 connected to the shank portion 2.

また、刃体３の基端と接合するシャンク部２の先端には、所定長ａの、テーパ部６ａと同径部６ｂとから成るシャンク部２の基端側より僅かに径小な径小部６を形成する。この径小部６の同径部６ｂは前記刃体３の基端部に形成した同径部８と略同径に設定している。本実施例においては、刃体３とシャンク部２と両者の接合部の外周の研削除去を同時に行い上記シャンク部２の径小部６及び刃体３の同径部８を形成している。   Further, at the tip of the shank portion 2 to be joined to the base end of the blade body 3, the diameter is slightly smaller than the base end side of the shank portion 2 having a predetermined length a and consisting of the tapered portion 6a and the same diameter portion 6b. Part 6 is formed. The same diameter portion 6 b of the small diameter portion 6 is set to have substantially the same diameter as the same diameter portion 8 formed at the proximal end portion of the blade body 3. In the present embodiment, the blade 3, the shank portion 2, and the outer periphery of the joint portion between them are ground and removed simultaneously to form the small diameter portion 6 of the shank portion 2 and the same diameter portion 8 of the blade body 3.

尚、刃体３の長さは、接合前に予め刃部７除去前の工具全長と刃体３接合後の工具全長とが略同じとなる長さに設定しても良い。   Note that the length of the blade body 3 may be set in advance so that the total length of the tool before removing the blade portion 7 and the total length of the tool after joining the blade body 3 are substantially the same before joining.

従って、刃部７除去前と同じ大きさの切削工具を製造可能となり、シャンク部２をほとんど研削加工等の除去加工をする必要なく、略そのままの状態で再利用できることになる。   Accordingly, a cutting tool having the same size as that before the blade 7 is removed can be manufactured, and the shank portion 2 can be reused substantially as it is without being subjected to removal processing such as grinding.

以上の工程を繰り返すことで、シャンク部２を何度も再利用することができ、材料の浪費を抑制して切削工具の低コスト化を実現でき、ひいては切削工具による加工コストを低減できることになる。   By repeating the above steps, the shank part 2 can be reused many times, the waste of material can be suppressed, the cost of the cutting tool can be reduced, and the processing cost by the cutting tool can be reduced. .

また、シャンク部２にロウ付けした刃体３の切れ刃が摩耗して研磨も不能となった場合には、この刃体３を除去し、新しい刃体３’をロウ付けすることになるが、本実施例においてはシャンク部２と新しい刃体３’との接合一体化を良好に行うため、図２に図示したように、シャンク部２の先端側をシャンク部２と刃体３との径小部６を除去するように切断している。そのため、本実施例においては再利用の度にシャンク部２は短くなっていくが、同一長さの切削工具を製造し得るようにシャンク部２の再利用を重ねる程、徐々に刃体３，３’，３”…を長くしている。   Further, when the cutting edge of the blade 3 brazed to the shank portion 2 is worn and cannot be polished, the blade 3 is removed and a new blade 3 'is brazed. In this embodiment, in order to satisfactorily integrate the shank portion 2 and the new blade body 3 ′, the tip side of the shank portion 2 is connected to the shank portion 2 and the blade body 3 as shown in FIG. It cut | disconnects so that the small diameter part 6 may be removed. Therefore, in this embodiment, the shank portion 2 is shortened each time it is reused. However, as the shank portion 2 is repeatedly reused so that a cutting tool having the same length can be manufactured, the blade body 3, 3 ', 3 "... are lengthened.

特に、本実施例においては、径小部６を所定長ａに設定しているから、例えば多数の切削工具をシャンク部２の長さ（シャンク長）毎に自動選別する際、この径小部６が目印となり容易に各切削工具のシャンク長を識別可能となり、シャンク長の測定選別から刃部の除去作業までを自動的に行えることになり、極めて加工効率が向上する。   In particular, in this embodiment, the small-diameter portion 6 is set to a predetermined length a. Therefore, for example, when a large number of cutting tools are automatically selected for each length (shank length) of the shank portion 2, this small-diameter portion. 6 becomes a mark so that the shank length of each cutting tool can be easily identified, and from the shank length measurement and selection to the blade part removal operation can be performed automatically, and the machining efficiency is greatly improved.

尚、本実施例は、一のソリッド材を加工して刃部７とシャンク部２とを形成して成る切削工具のシャンク部２を再利用する場合について詳述したが、刃部とシャンク部とをロウ付け等により接合一体化した切削工具のシャンク部を再利用する場合も同様である。また、テーパ部５を形成せず、刃部７とシャンク部２とを直接連設する切削工具のシャンク部を再利用する場合も同様である。   In addition, although the present Example explained in full detail about the case where the shank part 2 of the cutting tool formed by processing one solid material and forming the blade part 7 and the shank part 2, the blade part and the shank part are used. The same applies when the shank part of the cutting tool in which the two are joined and integrated by brazing or the like is reused. The same applies to the case where the shank portion of the cutting tool that directly connects the blade portion 7 and the shank portion 2 without forming the tapered portion 5 is reused.

本実施例は上述のようにしたから、刃部が摩耗した切削工具の該刃部を除去し、この刃部が除去された切削工具のシャンク部２の先端側に、切れ刃が形成される刃部１を具備する刃体３を接合することで、本来廃棄される切削工具のシャンク部を略そのまま再利用して新たな切削工具を製造でき、従って、新品と同等の切削性能を発揮可能な切削工具をコスト安に製造可能となる。   Since the present embodiment is configured as described above, the blade portion of the cutting tool whose blade portion is worn is removed, and a cutting blade is formed on the tip side of the shank portion 2 of the cutting tool from which the blade portion has been removed. By joining the blade body 3 having the blade portion 1, the shank portion of the cutting tool that is originally discarded can be reused almost as it is, and a new cutting tool can be manufactured. Cutting tools can be manufactured at low cost.

従って、本実施例は、切削工具の大部分を占めるシャンク部を略そのまま再利用して新品と同等の性能を有する切削工具をコスト安に製造可能なものとなる。   Therefore, in this embodiment, the shank portion that occupies most of the cutting tool can be reused as it is, and a cutting tool having performance equivalent to that of a new product can be manufactured at low cost.

本実施例の概略説明図である。It is a schematic explanatory drawing of a present Example. 本実施例の概略説明図である。It is a schematic explanatory drawing of a present Example.

符号の説明Explanation of symbols

１ 刃部
２ シャンク部
３ 刃体
６ 径小部 1 Blade part 2 Shank part 3 Blade body 6 Small diameter part

Claims (12)

先端側に被切削物を切削する切れ刃が形成された刃部を具備する刃体を有し、基端側に工具ホルダに保持されるシャンク部を有する切削工具であって、前記シャンク部は、刃部が摩耗した切削工具から該刃部が除去されたシャンク部であり、このシャンク部の先端側には前記刃体が接合されているものであることを特徴とする切削工具。   A cutting tool having a blade body having a blade portion formed with a cutting edge for cutting a workpiece on the distal end side, and having a shank portion held by a tool holder on a proximal end side, wherein the shank portion is A cutting tool comprising a shank portion from which a blade portion has been removed from a cutting tool with a worn blade portion, wherein the blade body is joined to a tip side of the shank portion. 請求項１記載の切削工具において、前記シャンク部として、前記刃部が摩耗した切削工具のシャンク部から前記刃部及び該シャンク部の先端側の一部を切断除去したものが採用されていることを特徴とする切削工具。   2. The cutting tool according to claim 1, wherein the shank part is formed by cutting and removing the blade part and a part of the tip side of the shank part from the shank part of the cutting tool with the blade part worn. Cutting tool characterized by 請求項２記載の切削工具において、前記シャンク部の先端には径小部が形成されていることを特徴とする切削工具。   3. The cutting tool according to claim 2, wherein a small-diameter portion is formed at a tip of the shank portion. 請求項１〜３いずれか１項に記載の切削工具において、前記シャンク部と前記刃体とはロウ付けにより接合されていることを特徴とする切削工具。   The cutting tool according to any one of claims 1 to 3, wherein the shank portion and the blade body are joined by brazing. 請求項１〜４いずれか１項に記載の切削工具において、前記刃体として、前記シャンク部に比し同等若しくは高強度の超硬合金製材料若しくは金属製材料から成るものが採用されていることを特徴とする切削工具。   The cutting tool according to any one of claims 1 to 4, wherein the blade body is made of a cemented carbide material or a metal material that is equivalent to or higher in strength than the shank portion. Cutting tool characterized by 先端側に被切削物を切削する切れ刃が形成された刃部を具備する刃体を有し、基端側に工具ホルダに保持されるシャンク部を有する切削工具の製造方法であって、切削工具から少なくとも刃部を除去し、続いて、この刃部が除去された切削工具のシャンク部の先端側に切れ刃が形成された刃部を具備する刃体を接合することで、前記シャンク部を再利用して切削工具を製造することを特徴とする切削工具の製造方法。   A method for manufacturing a cutting tool, which has a blade body having a blade portion in which a cutting edge for cutting a workpiece is formed on a distal end side, and a shank portion held by a tool holder on a proximal end side. At least the blade portion is removed from the tool, and then the shank portion is joined by joining a blade body having a blade portion having a cutting edge formed on the tip side of the shank portion of the cutting tool from which the blade portion has been removed. A method for manufacturing a cutting tool, characterized in that a cutting tool is manufactured by reusing the material. 請求項６記載の切削工具の製造方法において、前記刃部が除去された切削工具のシャンク部の先端側に切れ刃が形成されていない前記刃体を接合した後、この刃体に切れ刃を形成して刃部を具備せしめることを特徴とする切削工具の製造方法。   In the manufacturing method of the cutting tool of Claim 6, after joining the said blade body in which the cutting blade is not formed in the front end side of the shank part of the cutting tool from which the said blade portion was removed, a cutting blade is attached to this blade body. A method for manufacturing a cutting tool, comprising forming a blade portion. 請求項６，７いずれか１項に記載の切削工具の製造方法において、前記刃部を除去する際、前記切削工具のシャンク部から前記刃部及び該シャンク部の先端側の一部を切断除去することを特徴とする切削工具の製造方法。   In the manufacturing method of the cutting tool of any one of Claims 6 and 7, when removing the blade part, the blade part and a part of the tip side of the shank part are cut and removed from the shank part of the cutting tool. A method for manufacturing a cutting tool, comprising: 請求項８記載の切削工具の製造方法において、前記シャンク部の先端側に切れ刃が形成された刃部を具備する刃体を接合した後、該シャンク部の先端に径小部を形成することを特徴とする切削工具の製造方法。   9. The method for manufacturing a cutting tool according to claim 8, wherein after a blade body having a blade portion having a cutting edge formed on the tip side of the shank portion is joined, a small diameter portion is formed at the tip of the shank portion. A method of manufacturing a cutting tool characterized by the above. 請求項６〜９いずれか１項に記載の切削工具の製造方法において、前記刃体として、該刃体接合後の切削工具全長が、前記刃部除去前の切削工具全長以上となる長さを有する刃体が採用されていることを特徴とする切削工具の製造方法。   In the manufacturing method of the cutting tool of any one of Claims 6-9, The length from which the cutting tool full length after this blade body joining becomes more than the cutting tool full length before the said blade part removal as said blade body. The manufacturing method of the cutting tool characterized by the above-mentioned. 請求項６〜１０いずれか１項に記載の切削工具の製造方法において、前記刃部が除去された切削工具と前記刃体とをロウ付けにより接合することを特徴とする切削工具の製造方法。   The manufacturing method of the cutting tool of any one of Claims 6-10 WHEREIN: The cutting tool from which the said blade part was removed, and the said blade body are joined by brazing. 請求項６〜１１いずれか１項に記載の切削工具の製造方法において、前記刃体として、前記シャンク部に比し同等若しくは高強度の超硬合金製材料若しくは金属製材料から成るものが採用されていることを特徴とする切削工具の製造方法。   In the manufacturing method of the cutting tool of any one of Claims 6-11, what consists of a cemented carbide material or metal material equivalent or high intensity | strength compared with the said shank part as the said blade body is employ | adopted. A method of manufacturing a cutting tool, characterized by comprising:
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JPWO2012114641A1 (en) * 2011-02-23 2014-07-07 京セラ株式会社 Cutting tool and manufacturing method thereof
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JPWO2012114641A1 (en) * 2011-02-23 2014-07-07 京セラ株式会社 Cutting tool and manufacturing method thereof
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