JPS63191573A - Cutting grinding wheel reinforced with perforated metallic sheet - Google Patents
Cutting grinding wheel reinforced with perforated metallic sheetInfo
- Publication number
- JPS63191573A JPS63191573A JP2128387A JP2128387A JPS63191573A JP S63191573 A JPS63191573 A JP S63191573A JP 2128387 A JP2128387 A JP 2128387A JP 2128387 A JP2128387 A JP 2128387A JP S63191573 A JPS63191573 A JP S63191573A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- grinding wheel
- cutting wheel
- cut
- metal plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 108
- 239000000463 material Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims description 41
- 239000002184 metal Substances 0.000 claims description 41
- 239000002994 raw material Substances 0.000 claims description 6
- 239000003082 abrasive agent Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000004080 punching Methods 0.000 description 23
- 230000000694 effects Effects 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000012779 reinforcing material Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
技術分野
本発明は、被加工材を切断する切断砥石の改良に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to improvements in cutting wheels for cutting workpieces.
従来技術とその問題点
一般に、砥材および結合材などを混合した砥石原料を加
圧成形し且つ結合させることにより製造され、被加工材
を切断する円板状の切断砥石において、グラスファイバ
製のグラスクロスなどを補強材として設けることによっ
て補強することが行われている。確かに、このような補
強によれば、砥石の回転時における耐衝撃性が高められ
て、比較的厚み寸法の小さい砥石を高速回転させて被加
工材を切断する際においても、砥石のひび割れ。Prior art and its problems In general, in disc-shaped cutting wheels for cutting workpieces, which are manufactured by press-forming and bonding a grinding wheel raw material mixed with an abrasive material and a binding material, etc., glass fiber Reinforcement is carried out by providing glass cloth or the like as a reinforcing material. It is true that such reinforcement increases the impact resistance of the whetstone when it rotates, and prevents cracks in the whetstone even when a relatively thin whetstone is rotated at high speed to cut a workpiece.
破砕などがある程度まで防止されていた。Breaking was prevented to some extent.
発明が解決すべき問題点
しかしながら、上記のようなグラスクロスなどを用いた
補強によれば、回転時の耐衝撃性はある程度向上するが
、被加工材の切断時における砥石の耐変形性、すなわち
砥石の腰の強さは未だ充分に得られない。したがって、
砥石の回転時に切断すべき方向に対して砥石が曲がって
しまうため、被加工材が斜断されるとともに、切断点に
おいて砥石の側面との摩擦により生ずる熱が除去され難
いことから被加工材の切断面周辺に焼けが生じるという
問題があった。一方、切断砥石の厚み寸法を大きくする
ことにより砥石の腰を強くすることも考えられるが、こ
のような場合には、切断砥石を回転駆動するための駆動
力が増加してしまうとともに、被加工材の切断時の取り
代が大きくなってしまう。Problems to be Solved by the Invention However, although reinforcement using glass cloth as described above improves the impact resistance during rotation to some extent, the deformation resistance of the grindstone when cutting the workpiece, i.e. The strength of the grindstone is still not strong enough. therefore,
When the whetstone rotates, the whetstone bends in the direction to be cut, resulting in the workpiece being cut obliquely. At the cutting point, heat generated by friction with the side of the whetstone is difficult to remove, so the workpiece is cut at an angle. There was a problem in that burns occurred around the cut surface. On the other hand, it is possible to make the cutting wheel stronger by increasing its thickness, but in such a case, the driving force to rotate the cutting wheel will increase and the workpiece will be The amount of material to be removed when cutting the material becomes large.
問題点を解決するための手段
本発明者は、上述のような課題を解決するために種々研
究を重ねた結果、多孔金属板を用いて切断砥石を補強す
ると、被加工材の切断時における切断砥石の腰の強さが
好適に向上することを発見した。すなわち、本発明は、
このような知見に基づいて為されたものであり、その要
旨とするところは、砥材および結合材などを混合した砥
石原料を加圧成形し且つ結合させることにより製造され
る円板状の切断砥石において、その切断砥石の中央部に
、円形の多孔金属板を固設したことにある。Means for Solving the Problems As a result of various studies to solve the above-mentioned problems, the inventor of the present invention has found that by reinforcing the cutting wheel using a porous metal plate, the cutting speed when cutting the workpiece material is reduced. It has been discovered that the stiffness of the grindstone can be suitably improved. That is, the present invention
This was done based on this knowledge, and its gist is that a disc-shaped cutting product is manufactured by press-forming and bonding a grindstone raw material mixed with an abrasive material and a bonding material. The cutting wheel has a circular porous metal plate fixed to the center of the cutting wheel.
作用および発明の効果
このようにすれば、円板状の切断砥石の少なくとも一面
の中央部に円形の多孔金属板が固設されて回転時の応力
が集中し易い中央部が補強され、切断砥石の腰の強さが
充分に得られるので、切断時の砥石の曲がり、被加工材
の斜断および焼けなどが好適に防止されるとともに、切
断砥石の厚み寸法をその剛性が充分に得られる範囲で可
及的に小さくすることができ、砥石の駆動力および被加
工材の取り代が低減されるという効果が得られる。Operation and Effect of the Invention In this way, a circular porous metal plate is fixedly installed in the center of at least one side of the disc-shaped cutting whetstone, and the center part where stress tends to concentrate during rotation is reinforced, and the cutting whetstone Since sufficient rigidity is obtained, bending of the grinding wheel during cutting, oblique cutting and burning of the workpiece material, etc. can be suitably prevented, and the thickness of the cutting wheel can be adjusted to a range that provides sufficient rigidity. can be made as small as possible, resulting in the effect that the driving force of the grindstone and the machining allowance of the workpiece are reduced.
また、回転時の切断砥石を支持するためのフランジ部材
の径寸法が小さくされ得るので、被加工材を切断するた
めの砥石の切断有効寸法を大きくすることができ、大径
の被加工材を切断可能となるる。さらに、高速回転時の
砥石のひび割れ、破砕なども好適に防止し得るのである
。なお、多孔金属板は、パンチングされない金属板と比
較して、切断砥石に対する固着強度が著しく優れている
という利点を備えている。In addition, since the diameter of the flange member for supporting the cutting wheel during rotation can be reduced, the effective cutting dimension of the grinding wheel for cutting the workpiece can be increased, and large-diameter workpieces can be cut. It becomes possible to cut. Furthermore, cracking and crushing of the grindstone during high-speed rotation can be suitably prevented. Note that a porous metal plate has the advantage that it has significantly superior adhesion strength to a cutting wheel compared to a metal plate that is not punched.
ここで、上記多孔金属板は、好適には、前記切断砥石の
両面或いは片面に固着されるか、または切断砥石の厚み
幅内に埋設される。Here, the porous metal plate is preferably fixed to both sides or one side of the cutting wheel, or embedded within the thickness of the cutting wheel.
実施例
以下に、本発明の一実施例を図面に基づいて詳細に説明
する。EXAMPLE Below, one example of the present invention will be described in detail based on the drawings.
第１図および第２図は、本実施例の切断砥石１０をそれ
ぞれ示す平面図および第１図の■−■視図である。中心
部に支持穴１２が貫通させられた円形薄板状の切断砥石
１０の両面の中央部には、同じく中心部に支持穴１２と
同径の貫通穴１４を有し且つ一面に小径の孔１５を多数
貫通させた一対の円板状且つ比較的小径の多孔金属板、
すなわちパンチングメタル１６が、支持穴１２および貫
通穴１４を対応させた状態で固着されている。なお、第
１図において、パンチングメタル１６の小径の孔１５は
一部省略して示されている。また、図においては、孔１
５は円形孔であったが、たとえば十字型の孔などを用い
ても良い。1 and 2 are a plan view and a view taken along the line 1--2 of FIG. 1, respectively, showing the cutting whetstone 10 of this embodiment. A thin circular cutting wheel 10 with a support hole 12 penetrated through the center has a through hole 14 having the same diameter as the support hole 12 in the center and a small diameter hole 15 on one side. A pair of disc-shaped and relatively small-diameter porous metal plates with a large number of through holes,
That is, the punching metal 16 is fixed in such a manner that the support hole 12 and the through hole 14 correspond to each other. In FIG. 1, the small diameter hole 15 of the punching metal 16 is partially omitted. In addition, in the figure, hole 1
Although 5 is a circular hole, for example, a cross-shaped hole may also be used.
このように構成された切断砥石１０は、以下のようにし
て製造される。すなわち、成形金型の底面中央部に固定
されて突出する支持穴１２および貫通穴１４と同径の軸
状部材と、一方のパンチングメタル１６０貫通穴１４と
が嵌合されてパンチングメタル１６が予め成形金型の底
面に配置された状態で、その成形金型内に砥材と合成樹
脂などの結合材とを混合した砥石原料を流し入れた後に
、他方のパンチングメタル１６が軸状部材を通されて砥
石原料上に置かれた上から、圧力を加えることにより成
形される。このとき、パンチングメタル１６３よ、第３
図に示すように、前記加圧成形過程でその多数の小径の
孔１５内に砥石原料が侵入するとともに、孔１５がパン
チングされた際に打ち抜かれた側の一面に生しるバリ１
８が砥石原料内に埋設されるので、切断砥石１０に対す
る固着強度が高くなる。また、一対のパンチングメタル
１６の表面はそれぞれ切断砥石１０の表面と同じ高さと
なっている。このように加圧成形された後に、さらに高
温による焼成（Ｐ成）工程が加えられるのである。The cutting whetstone 10 configured as described above is manufactured as follows. That is, a shaft-shaped member fixed to and protruding from the center of the bottom of the mold and having the same diameter as the support hole 12 and the through hole 14 is fitted into the through hole 14 of one of the punching metals 160, so that the punching metal 16 is formed in advance. With the punching metal 16 placed on the bottom of the mold, after pouring a grindstone raw material mixed with an abrasive material and a binding material such as a synthetic resin into the mold, the other punching metal 16 is passed through the shaft member. It is then placed on top of the grinding wheel material and formed by applying pressure. At this time, punching metal 163, the third
As shown in the figure, the grindstone raw material enters into the many small diameter holes 15 during the pressure forming process, and when the holes 15 are punched, burrs 1 are formed on the punched side.
8 is embedded in the grindstone raw material, the strength of adhesion to the cutting grindstone 10 is increased. Furthermore, the surfaces of the pair of punching metals 16 are at the same height as the surface of the cutting whetstone 10, respectively. After being press-formed in this manner, a firing (P-forming) step is further added at a high temperature.
以上のようにして製造された切断砥石１０は、支持穴１
２および貫通穴１４内に図示しない駆動モータに連結さ
れた回転軸が嵌合され且つ支持穴１２周辺の中央部が一
対のフランジ部材により挟圧されて回転軸に固定される
とともに、駆動モータの回転駆動力が伝達される。そし
て、切断砥石１０が高速回転した状態で被加工材に周端
面を当接させることにより、被加工材が切断されるので
ある。なお、上述のように、パンチングメタル１６は、
その表面と切断砥石１０の表面とが同一面であるので、
被加工材の切断に同等影響を与えることはない。The cutting wheel 10 manufactured as described above has a support hole 1
A rotary shaft connected to a drive motor (not shown) is fitted into the through hole 14 and the center portion of the support hole 12 is clamped by a pair of flange members to be fixed to the rotary shaft, and the drive motor is Rotational driving force is transmitted. Then, the workpiece is cut by bringing the circumferential end surface of the cutting whetstone 10 into contact with the workpiece while rotating at high speed. In addition, as mentioned above, the punching metal 16 is
Since its surface and the surface of the cutting wheel 10 are the same surface,
It does not have the same effect on cutting the workpiece.
このとき、切断砥石１０はその両面の中央部において一
対のパンチングメタル１６によって補強されていること
から、切断時の耐変形性すなわち腰の強さが充分に備え
られているので、従来の砥石と比較して、切断砥石１０
の被加工材を切断すべき方向に対する曲がり、被加工材
の斜断、被加工材の切断面周辺の焼けなどが好適に防止
されるとともに、切断砥石１０の厚み寸法をその剛性が
充分に得られる範囲で可及的に小さくすることができ、
切断砥石１０を回転駆動するための駆動力および被加工
材の取り代が低減される。また、回転時の切断砥石１０
を支持するためのフランジ部材の面積が小さくされ得る
ので、被加工材の切断径を大きくすることができる。さ
らに、高速回転時の砥石のひび割れ、破砕なども好適に
防止し得るのである。At this time, since the cutting whetstone 10 is reinforced by a pair of punching metals 16 at the center of both sides, it has sufficient deformation resistance, that is, stiffness during cutting, so it is different from a conventional whetstone. In comparison, cutting wheel 10
In addition to suitably preventing bending of the workpiece in the direction in which the workpiece is to be cut, oblique cutting of the workpiece, and burning around the cut surface of the workpiece, the thickness of the cutting wheel 10 can be adjusted to have sufficient rigidity. can be made as small as possible,
The driving force for rotationally driving the cutting wheel 10 and the machining allowance of the workpiece are reduced. In addition, the cutting whetstone 10 during rotation
Since the area of the flange member for supporting can be reduced, the cutting diameter of the workpiece can be increased. Furthermore, cracking and crushing of the grindstone during high-speed rotation can be suitably prevented.
ス１１九１
以下に、上記の効果をさらに具体的に説明するために、
本実施例の切断砥石１０を用いて本発明者が行った実験
例について説明する。第１表は、寸法（７６０（外径）
×６ （厚み）Ｘ３８．１（支持穴１２の径）ＩＩｍ〕
および種別（Ａ２ＯＲ８Ｂ：砥粒Ａ１粒度２０．結合度
Ｒ１組織８．結合剤Ｂ（フェノール樹脂）〕であって、
直径２８０Ｂのパンチングメタル１６で補強された本実
施例の切断砥石１０と、同様の寸法および種別であり且
つ直径２８０鶴のグラスファイバで補強された従来の切
断砥石とを、前記フランジ部材により砥石を固定した状
態で砥石の最外周端を回転軸に平行な方向へ１０ｋｇの
力で引っ張った場合の変形量、およびフランジ部材に取
り付けた切断砥石を回転しそれが破壊した時点の周速で
ある回転破壊周速においてそれぞれ比較したものである
。但し、本実施例の切断砥石１０としては、諸元が異な
るパンチングメタル１６Ａ、１６Ｂ、１６Ｃ，１６０が
それぞれ備えられた４種類の砥石１０Ａ〜ＩＯＤが用い
られている。なお、パンチングメタル１６Ａ〜１６Ｄの
諸元（孔１５径寸法、厚み寸法、開孔率）はそれぞれ第
２表に示される通りであって、各項目中の開孔率は、孔
１５の面積をパンチングメタル１６全体の面積で除した
ものである。1191 Below, in order to explain the above effect more specifically,
An experimental example conducted by the present inventor using the cutting wheel 10 of this embodiment will be described. Table 1 shows the dimensions (760 (outer diameter)
×6 (thickness)X38.1 (diameter of support hole 12) IIm]
and the type (A2OR8B: Abrasive grain A1 particle size 20. Bonding degree R1 structure 8. Binder B (phenolic resin)),
The cutting whetstone 10 of this embodiment reinforced with a punching metal 16 having a diameter of 280B and a conventional cutting whetstone having similar dimensions and type and reinforced with glass fiber having a diameter of 280B are connected by the flange member. The amount of deformation when the outermost edge of the grindstone is pulled in a fixed state with a force of 10 kg in a direction parallel to the rotation axis, and the rotation that is the peripheral speed at the time when the cutting grindstone attached to the flange member is rotated and breaks. This is a comparison of the circumferential velocities at failure. However, as the cutting whetstone 10 of this embodiment, four types of whetstones 10A to IOD each having punching metals 16A, 16B, 16C, and 160 having different specifications are used. The specifications of the punching metals 16A to 16D (hole 15 diameter dimension, thickness dimension, porosity ratio) are as shown in Table 2, and the porosity ratio in each item refers to the area of the hole 15. It is divided by the area of the entire punching metal 16.
第 １ 表
第 ２ 表
第１表に示すように、補強材としてパンチングメタル１
６Ａ〜１６Ｄを用いた本実施例の切断砥石１０Ａ〜ＩＯ
Ｄによれば、従来のグラスファイバを用いた砥石と比較
してその変形量が少なく、且つ回転破壊周速がより大き
いことから、本実施例の切断砥石１０は耐衝撃性および
耐変形性の両方において従来の砥石よりも優れているこ
とがわかる。As shown in Table 1, Table 2, punching metal 1 is used as a reinforcing material.
Cutting wheels 10A to IO of this example using 6A to 16D
According to D, the amount of deformation is smaller than that of conventional grindstones using glass fibers, and the rotational fracture peripheral speed is higher. It can be seen that it is superior to conventional whetstones in both respects.
ｘＩＬム
次に、第２の実験例について説明する。第３表は、従来
の切断砥石と本実施例の切断砥石１０とを用いて、砥石
周速度４８ Ｑ Ｏｍ／ｍｉｎにおいて切断圧力を変化
させて被加工材を切断した結果を、被加工材の焼け、斜
断、および切断比について比較して示したものである。xIL Next, a second experimental example will be explained. Table 3 shows the results of cutting a workpiece using a conventional cutting whetstone and the cutting whetstone 10 of this embodiment at a circumferential speed of the whetstone of 48 Q Om/min and varying the cutting pressure. This shows a comparison of burning, bevelling, and cutting ratio.
すなわち、本実施例の切断砥石１０Ｅは、種別がＡ２４
Ｐ８Ｂで且つ寸法が７６０ ｘ ５ ｘ ３８．１鶴で
あり、直径寸法が２８０１ｍである第２表に示されたパ
ンチングメタル１６Ｂを備えたものである一方、従来の
切断砥石Ｆは本実施例と同様の寸法および種別であって
直径２８０１のグラスクロスを補強材として用いたもの
であり、切断すべき被加工材としては、断面直径がＬｏ
ｏｍのＳＣＭ４３５丸捧材が採用されている。なお、項
目中の「焼け」の度合は被加工材の切断面における変色
部分の占める割合、「斜断」の度合は切断面の軸方向距
離、そして切断比は被加工材の切断面の面積を摩耗した
切断砥石の面積で除した値で示される。That is, the cutting wheel 10E of this embodiment has a type of A24.
It is equipped with the punching metal 16B shown in Table 2, which is P8B and has dimensions of 760 x 5 x 38.1 mm and a diameter of 2801 m, while the conventional cutting wheel F is different from this embodiment. Glass cloth of similar size and type with a diameter of 2801 mm is used as a reinforcing material, and the workpiece to be cut has a cross-sectional diameter of Lo.
om's SCM435 round wood is used. In addition, the degree of "burn" in the item refers to the proportion of the discolored part on the cut surface of the workpiece, the degree of "oblique cut" refers to the axial distance of the cut surface, and the cutting ratio refers to the area of the cut surface of the workpiece. divided by the area of the worn cutting wheel.
第 ３ 表
木表から明らかなように、６０ｋｇおよび２５０ｋｇの
どちらの切断圧力においても、本実施例の切断砥石１０
Ｅは、従来の砥石Ｆと比較して、切断面の焼けおよび斜
断が大幅に低減されるとともに、切断比においてもより
好適な値が得られる。因に、本実施例の切断砥石１０Ｅ
および従来の砥石Ｆにて、上記の条件に従って２５０
ｋｇの切断圧力で被加工材に対してそれぞれ複数回連続
的に切断加工を施したところ、本実施例の切断砥石１０
Ｅは、廃却まで連続切断が可能であったが、これに対し
て従来の砥石Ｆでは、５回目の加工において切断面の斜
断によって発生した砥石の切断端面の偏摩耗の進行によ
り、続けて切断加工を行うことが不可能となった。As is clear from the third table, at both cutting pressures of 60 kg and 250 kg, the cutting wheel 10 of this example
Compared with the conventional grindstone F, E can significantly reduce burns and oblique cuts on the cut surface, and also provide a more suitable value for the cutting ratio. Incidentally, the cutting whetstone 10E of this example
and conventional grinding wheel F, according to the above conditions.
When the workpiece was continuously cut several times with a cutting pressure of 1 kg, the cutting wheel 10 of this example
E was capable of continuous cutting until it was discarded, but on the other hand, with the conventional grinding wheel F, due to uneven wear on the cutting end of the grinding wheel caused by the oblique cutting of the cutting surface in the 5th machining, It became impossible to carry out the cutting process.
尖腹■１
さらに、第３の実験例について説明する。第４表は、直
径７６０ ｍｍのパンチングメタル１６Ｂを補強材とし
て備え、種別Ａ２４Ｐ８Ｂで且つ寸法１５００ Ｘ ｌ
２ Ｘ ３８．１酊である本実施例の切断砥石ＬＯＧ
と、同様の種別および寸法であって、直径７６０ ｘ＊
のグラスクロスを補強材として備えた従来の切断砥石Ｈ
とが、種別３４５Ｃで且つ寸法１７７．８（断面直径）
Ｘ２５（厚み）鶴のパイプである被加工材に対して周速
４８００ ｍ／ｍｉｎにて切断加工を行った場合の、前
記実験例２と同様の項目についての結果を示したもので
ある。但し、実験例２においては切断圧力を２段階に変
化させていたが、本実験例では被加工材に対する切込速
度を変化させている。Apex ■1 Furthermore, a third experimental example will be explained. Table 4 shows punching metal 16B with a diameter of 760 mm as a reinforcing material, type A24P8B, and dimensions 1500 x l.
2 x 38.1 cutting wheel LOG of this example
and similar type and dimensions, with a diameter of 760 x*
Conventional cutting wheel H equipped with glass cloth as a reinforcement material
is type 345C and dimension 177.8 (cross-sectional diameter)
This figure shows the results for the same items as in Experimental Example 2 when cutting a workpiece, which is an X25 (thickness) crane pipe, at a circumferential speed of 4800 m/min. However, in Experimental Example 2, the cutting pressure was varied in two stages, but in this Experimental Example, the cutting speed with respect to the workpiece was varied.
第 ４ 表
このように、前記実験例２と比較して直径、厚み寸法お
よびパンチングメタル１６Ｂの直径が大きくされている
本実験例の切断砥石１０Ｇにおいては、どちらの切込速
度でも被加工材の焼けおよび斜断は見られず、また切断
比においても従来の砥石Ｈと比較してより好適な値を得
ることができた。Table 4 As shown above, in the cutting wheel 10G of this experimental example, in which the diameter, thickness, and diameter of the punching metal 16B are larger than those of the experimental example 2, the workpiece material can be cut at either cutting speed. No burning or oblique cutting was observed, and a more suitable value for the cutting ratio was obtained compared to the conventional grindstone H.
以上、本発明の一実施例を用いた実験結果について説明
したが、本発明はその他の態様においても好適に実施さ
れ得る。Although the experimental results using one embodiment of the present invention have been described above, the present invention can be suitably implemented in other embodiments as well.
たとえば、前述の実施例においては、バンチングメタル
１６は切断砥石１０の両面において固着されていたが、
どちらか−面のみでも、あるいは、切断砥石１０内の厚
み中心に埋設されても略同様の効果が得られる。For example, in the above embodiment, the bunching metal 16 was fixed to both sides of the cutting wheel 10, but
Substantially the same effect can be obtained even if it is buried only on either side or in the center of the thickness of the cutting whetstone 10.
また、前述の実施例においては、パンチングメタル１６
の製造過程において打ち抜かれた側の面に形成されたバ
リ１８が切断砥石１０内に埋設されることによりパンチ
ングメタル１６と切断砥石１０との固着強度が一層高め
られていたが、たとえばパンチング加工の際に、孔１５
の打ち抜かれた側にバーリング加工を施してそのバーリ
ングが切断砥石１０内に埋設されるようにしても良い。In addition, in the above embodiment, the punching metal 16
The adhesion strength between the punching metal 16 and the cutting wheel 10 has been further increased by burying the burr 18 formed on the punched side surface in the manufacturing process of the cutting wheel 10. In this case, hole 15
The punched side may be burred and the burring may be embedded in the cutting wheel 10.
このようにすれば、パリによる場合よりも一層積極的に
切断砥石１０との固着強度が高められる利点がある。In this way, there is an advantage that the strength of adhesion to the cutting wheel 10 can be more actively increased than in the case of using Paris.
また、パンチングメタル１６の孔１５の形状および径辻
法は、切断砥石１０の種別１寸法、および実施態様に応
じて種々変更され得るものである。Further, the shape and radius of the hole 15 of the punching metal 16 can be changed in various ways depending on the type 1 size of the cutting wheel 10 and the embodiment.
また、パンチングメタル１６は、打抜き、エツチング、
その他の手法により多数の孔が形成された金属板であれ
ば良いので、鋼鉄、銅、ステンレス、アルミ等の種々の
金属板が用いられ得る。In addition, the punching metal 16 can be punched, etched,
Any metal plate may be used as long as it has a large number of holes formed by other methods, so various metal plates such as steel, copper, stainless steel, and aluminum can be used.
なお、上述したのは本発明の一実施例であり、本発明は
その精神を逸脱しない範囲において種々変更が加えられ
得るものである。It should be noted that the above-mentioned embodiment is one embodiment of the present invention, and various modifications may be made to the present invention without departing from the spirit thereof.
第１図は本発明の一実施例である切断砥石の平面図であ
る。第２図は第１図の■−■視図である。
第３図は切断砥石とパンチングメタルとの固着状態を示
す拡大断面図である。
１０：切断砥石FIG. 1 is a plan view of a cutting wheel that is an embodiment of the present invention. FIG. 2 is a view from ■--■ in FIG. 1. FIG. 3 is an enlarged sectional view showing the state in which the cutting wheel and the punching metal are fixed. 10: Cutting whetstone
Claims (4)
成形し且つ結合させることにより製造される円板状の切
断砥石において、 該切断砥石の中央部に、円形の多孔金属板を固設したこ
とを特徴とする多孔金属板補強切断砥石。(1) In a disc-shaped cutting wheel manufactured by press-forming and bonding a grinding wheel raw material mixed with an abrasive material and a binding material, a circular porous metal plate is fixed in the center of the cutting wheel. A cutting wheel with a reinforced porous metal plate.
れ固着されたものである特許請求の範囲第１項に記載の
多孔金属板補強切断砥石。(2) The porous metal plate reinforced cutting wheel according to claim 1, wherein the porous metal plate is fixed to both surfaces of the cutting wheel.
れたものである特許請求の範囲第１項に記載の多孔金属
板補強切断砥石。(3) The porous metal plate reinforced cutting wheel according to claim 1, wherein the porous metal plate is fixed to one side of the cutting wheel.
設されたものである特許請求の範囲第１項に記載の多孔
金属板補強切断砥石。(4) The porous metal plate reinforced cutting wheel according to claim 1, wherein the porous metal plate is embedded within the thickness and width of the cutting wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2128387A JPS63191573A (en) | 1987-01-31 | 1987-01-31 | Cutting grinding wheel reinforced with perforated metallic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2128387A JPS63191573A (en) | 1987-01-31 | 1987-01-31 | Cutting grinding wheel reinforced with perforated metallic sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63191573A true JPS63191573A (en) | 1988-08-09 |
Family
ID=12050806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2128387A Pending JPS63191573A (en) | 1987-01-31 | 1987-01-31 | Cutting grinding wheel reinforced with perforated metallic sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63191573A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005288633A (en) * | 2004-03-31 | 2005-10-20 | Goei Seisakusho:Kk | Cutting tool and its manufacturing method |
-
1987
- 1987-01-31 JP JP2128387A patent/JPS63191573A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005288633A (en) * | 2004-03-31 | 2005-10-20 | Goei Seisakusho:Kk | Cutting tool and its manufacturing method |
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