JPS6144777Y2 - - Google Patents
Info
- Publication number
- JPS6144777Y2 JPS6144777Y2 JP1980036969U JP3696980U JPS6144777Y2 JP S6144777 Y2 JPS6144777 Y2 JP S6144777Y2 JP 1980036969 U JP1980036969 U JP 1980036969U JP 3696980 U JP3696980 U JP 3696980U JP S6144777 Y2 JPS6144777 Y2 JP S6144777Y2
- Authority
- JP
- Japan
- Prior art keywords
- platen
- abrasive belt
- belt
- workpiece
- guide
- 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.)
- Expired
Links
- 238000005498 polishing Methods 0.000 claims description 22
- 238000007517 polishing process Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Description
【考案の詳細な説明】 本考案は、ベルト研摩装置に関する。[Detailed explanation of the idea] The present invention relates to a belt polishing device.
従来のベルト研摩装置を、円柱状被加工物の面
取研摩加工を例にして説明する。第１図に示すよ
うに研摩ベルト１は、被加工物Ｗに対して走行自
在であり、円柱状の被加工物Ｗは、図示せぬ姿勢
保持手段によつて、その稜部W1を上記研摩ベル
ト１に向けたまま転がすことができるようになつ
ている。この被加工物Ｗに対し、上記研摩ベルト
１を介してプラテン２が設けられる。このプラテ
ン２は、上記研摩ベルト１と摺接するので、この
摺接による損傷を防ぐために摩擦係数が小さく、
剛性が高い、たとえば鋼板を平滑に仕上げて作ら
れている。 A conventional belt polishing apparatus will be explained using chamfer polishing of a cylindrical workpiece as an example. As shown in FIG. 1, the abrasive belt 1 is movable relative to the workpiece W, and the cylindrical workpiece W is held at its ridge W1 by an unillustrated posture holding means. It is designed so that it can be rolled while facing the abrasive belt 1. A platen 2 is provided to this workpiece W via the abrasive belt 1 . Since this platen 2 comes into sliding contact with the abrasive belt 1, the friction coefficient is small to prevent damage caused by this sliding contact.
It has high rigidity, for example, it is made from a steel plate with a smooth finish.
面取りは、研摩ベルト１を走行させ、被加工物
Ｗの稜部W1を上記研摩ベルト１に圧接しながら
転動させる。すると、稜部W1は削り取られ、い
わゆる面取りがおこなわれるが、この場合面取り
された部分は、第２図に示すように被加工物Ｗの
中心軸線に対して一定角度傾斜した環状面W2と
なり、端面および外周面間にそれぞれ環状に稜部
W3が形成される。このような面取りにおいて
は、明確な尖つた稜部W3が存在するために、さ
ず第１にこの稜部W3にバリが発生し易い。ま
た、第２に、この稜部のために、被加工物Ｗ同士
がぶつかると打こんを生ずる等の不具合があつ
た。また、この尖りを無くすために、プラテン２
を剛性の低い材質で作ることも考えられるが、そ
うすると摩擦力が大きくなつて研摩ベルト１また
はプラテン２自体の摩耗が激しく、ついには研摩
ベルト１との摺接が円滑に行なわれなくなり、面
取りが不可能になる。 For chamfering, the abrasive belt 1 is run and the ridge W1 of the workpiece W is rolled while being pressed against the abrasive belt 1. Then, the ridge W 1 is shaved off and so-called chamfering is performed, but in this case, the chamfered portion is an annular surface W 2 inclined at a certain angle with respect to the central axis of the workpiece W, as shown in FIG. There is an annular ridge between the end face and the outer circumferential face.
W 3 is formed. In such chamfering, since there is a clear sharp edge W 3 , burrs are likely to occur first on this edge W 3 . Secondly, due to this ridge, there were problems such as dents occurring when the workpieces W collided with each other. Also, in order to eliminate this sharpness, the platen 2
It is also possible to make the abrasive belt 1 or platen 2 from a material with low rigidity, but this will increase the frictional force and cause severe wear on the abrasive belt 1 or platen 2 itself, and eventually the sliding contact with the abrasive belt 1 will no longer be achieved, resulting in chamfering. becomes impossible.
上述のように、従来の面取りは、不具合な点が
多く面取り後においてもなお存在するバリ、稜部
W3、打こん等を処理するために多くの費用を要
していた。 As mentioned above, conventional chamfering has many defects such as burrs and ridges that still exist even after chamfering.
W 3 , it took a lot of money to process the stamps, etc.
本考案は、上述の事情に基づいてなされたもの
で、剛性部材からなるプラテンに研摩ベルトを斜
めに横切る方向の帯状溝を形成するとともに、こ
の帯状溝に弾性体を充てんし、その弾性体の表面
を上記溝に隣接するプラテンの表面と同一表面に
形成して、稜部が尖らない研摩加工ができるよう
にしたものである。 The present invention was developed based on the above-mentioned circumstances, and includes forming a band-shaped groove diagonally across the abrasive belt in a platen made of a rigid member, and filling this band-shaped groove with an elastic body. The surface is formed to be the same as the surface of the platen adjacent to the groove, so that polishing can be performed without sharp edges.
以下、本考案を図面を参照し、実施例に基づい
て説明する。 Hereinafter, the present invention will be described based on examples with reference to the drawings.
第３図および第４図に示すように、研摩装置
は、長い帯状のエンドレスでその１面を研削作用
面とする研摩ベルト１を有する。この研摩ベルト
１は、図示せぬ駆動機構の駆動によつて連続的に
一定速度で一定方向に走行し、被加工物Ｗを研摩
する。上記研摩ベルト１の研削作用面上には、全
体として、平板状長尺形状のガイド１０が、研摩
ベルト１をその走行方向に対して、ほぼ45゜の角
度で斜めに横切るごとく設けられている。このガ
イド１０は、矩形棒状部材の長側面に45゜の傾斜
面を形成した一対のガイドレール１１，１１を、
それぞれ傾斜面を図示のように上方に向け、か
つ、一定間隔をあけて、向き合わせて図示せぬ架
台に取付けたものである。また、このガイド１０
に対し、研摩ベルト１に沿つて、プラテン１２が
設けられる。このプラテン１２は、上記ガイド１
０に対してほぼ研摩ベルト１の厚さ寸法の間隔を
あけて設置されたもので、研摩ベルト１は、その
裏面がプラテン１２に摺接しながら、上記ガイド
１０との間を走行する。上記プラテン１２の幅
は、上記研摩ベルト１の幅より広く、その長さは
ガイド１０を幅方向の一側から他側に横切らせる
に十分な大きさであり、金属板等の剛性の高い材
料で研摩ベルト１の摺接するがわの表面を平滑に
形成したものである。しかして、このプラテン１
２の研摩ベルト１が摺接するがわの表面には、上
記ガイド１０を構成する一対の棒状部材相互間に
間隙から突出する被加工物Ｗの一部と対向する如
く、かつ同方向つまり研摩ベルト１を斜めに横切
る方向に、一定の幅寸法の傾斜面をもつＶ形状の
帯状溝１３が、上記プラテン１２の一側から他側
にわたつて設けられる。この帯状溝１３には、第
５図に示すように弾性体１４が、接着等によつて
充てんされ、この弾性体１４の表面は、上記帯状
溝１３に隣接するプラテンの表面と同一平面に形
成されている。なお、この装置には、被加工物Ｗ
をガイド１０に沿いかつ研摩ベルト１に圧接させ
ながら転動させる。たとえば回転ベルトの如き図
示せぬ圧接動機構が設けられ、被加工物Ｗは、こ
れとの圧接にともないガイド１０によりプラテン
１２の一側から他側に研摩ベルト１を横切る方向
に転動するようになつている。 As shown in FIGS. 3 and 4, the polishing device has a long belt-shaped endless polishing belt 1 with one surface serving as a grinding surface. The polishing belt 1 is driven by a drive mechanism (not shown) to continuously run at a constant speed in a constant direction, polishing the workpiece W. On the grinding surface of the abrasive belt 1, a guide 10 having an elongated flat plate shape as a whole is provided so as to diagonally cross the abrasive belt 1 at an angle of approximately 45 degrees with respect to the running direction of the abrasive belt 1. . This guide 10 includes a pair of guide rails 11, 11 each having a 45° inclined surface formed on the long side of a rectangular rod-shaped member.
They are mounted on a pedestal (not shown) facing each other with their inclined surfaces facing upward as shown, and with a constant interval between them. Also, this guide 10
On the other hand, a platen 12 is provided along the polishing belt 1. This platen 12 is connected to the guide 1
The polishing belt 1 runs between the guide 10 and the guide 10 while its back surface slides on the platen 12. The width of the platen 12 is wider than the width of the abrasive belt 1, and its length is large enough to allow the guide 10 to cross from one side to the other in the width direction, and is made of a highly rigid material such as a metal plate. The surface of the side on which the abrasive belt 1 makes sliding contact is formed to be smooth. However, this platen 1
The abrasive belt 1 is placed on the surface of the side where the abrasive belt 1 slides in such a manner that it faces a part of the workpiece W protruding from the gap between the pair of rod-shaped members constituting the guide 10 and in the same direction, that is, the abrasive belt A V-shaped band-shaped groove 13 having an inclined surface with a constant width is provided in a direction diagonally across the platen 1 from one side of the platen 12 to the other side. As shown in FIG. 5, this band-shaped groove 13 is filled with an elastic body 14 by adhesive or the like, and the surface of this elastic body 14 is formed on the same plane as the surface of the platen adjacent to the band-shaped groove 13. has been done. Note that this device has a workpiece W
is rolled along the guide 10 and in pressure contact with the abrasive belt 1. For example, a pressing mechanism (not shown) such as a rotating belt is provided, and the workpiece W is rolled in a direction across the abrasive belt 1 from one side of the platen 12 to the other side by the guide 10 as the workpiece W is pressed against the mechanism. It's getting old.
上述の構成において、研摩ベルト１を走行さ
せ、円柱状被加工物Ｗをガイド１０に沿わせ、上
記図示せぬ圧接転動機構によつて、その稜部W1
を上記研摩ベルトに向けて圧接しつつ転がしてゆ
く。すると、ガイド１０の一対のガイドレール１
１，１１の隙間からのぞく被加工物Ｗの稜部W1
は研摩される。かりに、ガイド１０および帯状溝
１３を研摩ベルト１の走行方向と直角に設けたと
すると、走行中の研摩ベルト１は、走行の方向に
引張られているため引張応力に起因するたわみに
くさが大きくなつて、最もたわみにくくなり、ま
た、これらガイド１０、帯状溝１３を走行方向に
設けたとすると、同様の理由により最もたわみや
すくなる。しかし、この研摩加工では、ガイド１
０および帯状溝１３が研摩ベルト１を斜めに横切
つて設けられているため、研摩ベルト１は、両者
の中間のたわみやすさをもつことになり、このこ
とが上記帯状溝１３に充てんされた弾性体１４に
よる反撥力増大と相乗して、研摩ベルト１に適度
のたわみやすさをもたせることができるので、被
加工物稜部W1を明確な稜部W3をもたない曲面状
の所望の面取面に形成できる。この様子を拡大し
て示したのが、第６図である。本考案の装置およ
び従来の装置によつて面取研摩加工が行なわれた
実物の環状面W2形状の一例を拡大（実物に対し
て230倍に拡大）して、それぞれ第７図および第
８図に示す。両者を比べてみると、本考案のベル
ト研摩装置によつて研摩ベル加工を行なうと環状
面W2両端部はあたかも稜が存在しないように尖
りが無くなり端面から外周面にかけて連続した滑
らかな曲面になることがよくわかる。しかして、
加工された部材は、その稜が尖らないので、部材
同士を互いに当接させても打こんを生ぜず、流れ
加工を容易に行なうことができるとともに、従来
行なつていたバリ、尖り、打こん等の処置を必要
としなくなつて、研摩作業の生産性を画期的に向
上することができる。また、この研摩加工では、
ガイド１０を転動してきた被加工物Ｗが研摩ベル
ト１に当接する際の被加工物稜部W1による研摩
ベルト１の損傷を緩和できる。すなわち、従来の
ようにプラテン１２に弾性体の設けられていない
ものは、尖つた稜部W1と接触するとき逃げがな
いため、研摩ベルトの側端部を傷つけやすいが、
弾性体１４があると研摩ベルト１がそこでたわむ
から、損傷を大幅に緩和し、前記した被加工物の
稜部W1を連続した滑らかな曲面に形成する研摩
を、研摩ベルト１に損傷を与えることなく行なう
ことができる。また、プラテン１２は、反撥力の
ある弾性体１４が設けられたため、たわむのを阻
害しない状態で、研摩ベルト１のたわみを補強で
きる。また、研摩ベルト１に同じ圧接力を与えて
も、弾性体１４をプラテン１２と同一平面まで充
てんしたものは同一平面まで充てんしない場合と
比べて、上記圧接力が即弾性体の反撥力として得
られ、速かに所要形状の研摩を行なうことができ
る。また、弾性体１４が、プラテン１２と同一平
面まで充てんされているため、研摩ベルト１の張
りがゆるんだような場合にも、たわみ部の形状が
変らないから、一定の形状で品質良く研摩するこ
とができる。また、プラテン１２が剛性部材で作
られており、かつ弾性体１４の表面が帯状溝１３
に隣接するプラテン１２の表面から突出しないた
め、研摩ベルト１との摺接の円滑さがあまり損な
われないから、双方に摺接による損傷を生じな
い。更にまた、研摩加工が研摩ベルト１が横切つ
て行なわれるから、研摩ベルト１は無駄なく使用
される。本考案は、以上詳述したように、極めて
実用的な多くの効果を奏するものである。 In the above-described configuration, the abrasive belt 1 is run, the cylindrical workpiece W is placed along the guide 10, and the ridge portion W 1 is moved by the pressure contact rolling mechanism (not shown).
is rolled toward the abrasive belt while being pressed against it. Then, the pair of guide rails 1 of the guide 10
Ridge part W 1 of workpiece W peeking through gaps 1 and 11
is polished. On the other hand, if the guide 10 and the band-shaped groove 13 are provided at right angles to the running direction of the abrasive belt 1, the abrasive belt 1 while running is being pulled in the direction of running, and therefore becomes more difficult to bend due to tensile stress. If these guides 10 and band-shaped grooves 13 are provided in the running direction, then for the same reason, it will be the easiest to bend. However, in this polishing process, guide 1
Since the belt-like grooves 13 and 13 are provided diagonally across the abrasive belt 1, the abrasive belt 1 has a flexibility that is between the two, and this means that the belt-like grooves 13 are filled with Combined with the increase in repulsive force by the elastic body 14, the abrasive belt 1 can be made to have appropriate flexibility, so that the workpiece edge W1 can be shaped into a desired curved surface without a clear edge W3 . Can be formed on a chamfered surface. FIG. 6 shows an enlarged view of this situation. An example of the actual annular surface W2 shape that has been chamfered and polished using the device of the present invention and the conventional device is enlarged (230 times larger than the actual object) and shown in Figures 7 and 8, respectively. As shown in the figure. Comparing the two, when the belt polishing device of the present invention performs the polishing process, both ends of the annular surface W2 become sharp, as if there were no ridges, and form a continuous smooth curved surface from the end surface to the outer circumferential surface. I can clearly see what will happen. However,
The processed parts do not have sharp edges, so even if the parts are brought into contact with each other, there will be no dents, making flow machining easy, and eliminating burrs, sharp edges, and dents that were conventionally done. This eliminates the need for such measures, and the productivity of polishing work can be dramatically improved. In addition, in this polishing process,
Damage to the abrasive belt 1 caused by the ridge W 1 of the workpiece when the workpiece W rolling on the guide 10 comes into contact with the abrasive belt 1 can be alleviated. In other words, when the platen 12 is not provided with an elastic body as in the past, there is no escape when it comes into contact with the sharp ridge W1 , so the side edges of the polishing belt are likely to be damaged.
The presence of the elastic body 14 causes the abrasive belt 1 to bend, which greatly reduces damage and prevents damage to the abrasive belt 1 during the polishing process that forms the ridge W 1 of the workpiece into a continuous, smooth curved surface. You can do it without any trouble. Further, since the platen 12 is provided with the elastic body 14 having a repulsive force, the deflection of the polishing belt 1 can be reinforced without inhibiting the deflection. Furthermore, even if the same pressing force is applied to the abrasive belt 1, when the elastic body 14 is filled to the same plane as the platen 12, the above pressing force is obtained as a repulsive force of the instantly elastic body, compared to when the elastic body 14 is not filled to the same plane. It is possible to quickly polish the desired shape. In addition, since the elastic body 14 is filled to the same plane as the platen 12, even if the tension of the polishing belt 1 becomes loose, the shape of the bent portion does not change, so that high-quality polishing can be achieved with a constant shape. be able to. Further, the platen 12 is made of a rigid member, and the surface of the elastic body 14 is formed by the strip groove 13.
Since it does not protrude from the surface of the platen 12 adjacent to the abrasive belt 1, the smoothness of sliding contact with the polishing belt 1 is not significantly impaired, so that no damage is caused to both sides due to the sliding contact. Furthermore, since the polishing process is carried out across the polishing belt 1, the polishing belt 1 can be used without waste. As detailed above, the present invention has many extremely practical effects.
第１図および第２図は従来のベルト研摩装置を
示し、第１図は斜視図、第２図はその被加工物の
一部拡大図、第３図ないし第８図は本考案の実施
例のベルト研摩装置を示し、第３図は平面図、第
４図はその−矢印方向に見た断面図、第５図
および第６図はそれぞれその要部拡大図、第７図
および第８図は面取りを行なつた環状面形状を示
す線図である。
１……研摩ベルト、１０……ガイド、１２……
プラテン、１３……帯状溝、１４……弾性体、Ｗ
……被加工物、W1，W3……稜部、W2……面取
面。
1 and 2 show a conventional belt polishing device, FIG. 1 is a perspective view, FIG. 2 is a partially enlarged view of the workpiece, and FIGS. 3 to 8 are examples of the present invention. 3 is a plan view, FIG. 4 is a sectional view of the belt polishing device as seen in the direction of the - arrow, FIGS. 5 and 6 are enlarged views of the main parts thereof, and FIGS. 7 and 8, respectively. 1 is a diagram showing a chamfered annular surface shape; FIG. 1...Abrasive belt, 10...Guide, 12...
Platen, 13... Band-shaped groove, 14... Elastic body, W
... Workpiece, W 1 , W 3 ... Edge, W 2 ... Chamfered surface.
Claims (1)
物を研摩する研摩ベルトと、上記研摩ベルトの研
削作用面裏面がわに上記研摩ベルトと対向して設
置される剛性部材からなるプラテンと、底部が上
記研摩ベルトを介して上記プラテンに対向し且つ
上記プラテンの一側から他側に上記研摩ベルトを
斜めに横切る方向に上記被加工物の一部を上記研
摩ベルト側に突出させて案内するガイドとを具備
し、上記プラテンには上記研摩ベルトを介して上
記ガイドの底部から突出している被加工物に対向
する帯状溝が上記プラテンの一側から他側にわた
つて上記ガイドによる上記被加工物の案内方向に
設けられこの帯状溝には弾性体が充てんされその
弾性体の表面は上記帯状溝に隣接するプラテンの
表面と同一平面をなしていることを特徴とするベ
ルト研摩装置。 An abrasive belt that travels in a fixed direction and polishes a workpiece by the drive of a drive mechanism, a platen made of a rigid member installed opposite the abrasive belt on the back side of the abrasive surface of the abrasive belt, and a platen with a bottom portion. a guide that faces the platen via the abrasive belt and guides a part of the workpiece by protruding toward the abrasive belt in a direction diagonally across the abrasive belt from one side of the platen to the other side; The platen is provided with a band-shaped groove protruding from the bottom of the guide through the abrasive belt and facing the workpiece, extending from one side of the platen to the other side to prevent the workpiece from being moved by the guide. A belt polishing device characterized in that the band-shaped groove provided in the guiding direction is filled with an elastic body, and the surface of the elastic body is flush with the surface of the platen adjacent to the band-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980036969U JPS6144777Y2 (en) | 1980-03-22 | 1980-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980036969U JPS6144777Y2 (en) | 1980-03-22 | 1980-03-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55138050U JPS55138050U (en) | 1980-10-01 |
| JPS6144777Y2 true JPS6144777Y2 (en) | 1986-12-16 |
Family
ID=28899150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980036969U Expired JPS6144777Y2 (en) | 1980-03-22 | 1980-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6144777Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5128595B2 (en) * | 1973-05-22 | 1976-08-20 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5128595U (en) * | 1974-08-23 | 1976-03-01 |
-
1980
- 1980-03-22 JP JP1980036969U patent/JPS6144777Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5128595B2 (en) * | 1973-05-22 | 1976-08-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55138050U (en) | 1980-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7744445B2 (en) | Polishing apparatus and polishing method | |
| JPS6159869B2 (en) | ||
| JPS6144777Y2 (en) | ||
| JPS6137490Y2 (en) | ||
| EP1422002B1 (en) | Bending roll machine | |
| JPH04201066A (en) | Preventing device for bias of endless belt and belt working device using same device | |
| JPH09272050A (en) | Flat surface grinding method and device for double-headed disc-like work | |
| JP2004535939A (en) | Lock-up system for cutting mat | |
| US2867061A (en) | Grinders | |
| JPH0438538B2 (en) | ||
| ITRM980178A1 (en) | APPARATUS IS SUPERFINISHED THROUGH THE USE OF FILM ABRASIVE | |
| KR920008432B1 (en) | Magnetic lapping method and lapping device and magnetic head by using it | |
| JPS6237641Y2 (en) | ||
| US2946163A (en) | Grinders | |
| JPS5940102Y2 (en) | Belt grinding device for rolling rolls | |
| US3645046A (en) | Polishing of strip metal | |
| JP2508045B2 (en) | Polishing method for corners of end face of rotating body | |
| JPS60131195A (en) | Method and device for cutting sheet-shaped long-sized material having elasticity | |
| RU2053102C1 (en) | Device for band grinding of metallic strip | |
| JPS6186006A (en) | Method and device for rolling thick plate | |
| US6688950B2 (en) | Magnetic recording medium and method of smoothing surface of magnetic recording medium | |
| JP3638964B2 (en) | Surface grinding method for cylindrical body | |
| EP0110263B1 (en) | Chamfering method for a curved slot corner | |
| SU28155A1 (en) | Drive Device for Conveyor Belts | |
| JPH08174015A (en) | Auxiliary roll of cold rolling mill for stainless steel and method for working surface thereof |