JPH0137239B2 - - Google Patents
Info
- Publication number
- JPH0137239B2 JPH0137239B2 JP57059760A JP5976082A JPH0137239B2 JP H0137239 B2 JPH0137239 B2 JP H0137239B2 JP 57059760 A JP57059760 A JP 57059760A JP 5976082 A JP5976082 A JP 5976082A JP H0137239 B2 JPH0137239 B2 JP H0137239B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- billet
- skin
- laser
- laser beam
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 49
- 229910052782 aluminium Inorganic materials 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 23
- 230000001678 irradiating effect Effects 0.000 claims 1
- 210000003491 skin Anatomy 0.000 description 26
- 238000005520 cutting process Methods 0.000 description 11
- 238000005498 polishing Methods 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 210000002615 epidermis Anatomy 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0823—Devices involving rotation of the workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/06—Machines, apparatus, or equipment specially designed for scarfing or desurfacing
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Description
【発明の詳細な説明】
本発明はアルミニウムビレツトの表皮除去方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for removing skin from aluminum billets.
周知の如くアルミニウムビレツトはアルミニウ
ム押出型材の素材として、特に6063合金鋳造ビレ
ツトが住宅又はビルデイングのサツシ製造用に多
用されている。この際、殆どのアルミニウムビレ
ツトは表皮除去をせずに押出されているが、苛酷
な押出が要求される押出型材の場合は、アルミニ
ウム溶湯鋳造中にビレツト表面に形成される薄い
酸化皮膜あるいは合金成分の偏析層が、押出ダイ
スのベアリング面にて酸化皮膜の巻込み等の表面
欠陥を生じるという問題がある。最悪の場合には
酸化皮膜等が押出ダイスのベアリング面を疵つ
け、これにより二次的な表面欠陥も生じる。そこ
でビレツト表皮除去の必要性が生じる。 As is well known, aluminum billets are widely used as raw materials for aluminum extrusion moldings, and in particular, 6063 alloy cast billets are widely used for manufacturing sashes for houses and buildings. At this time, most aluminum billets are extruded without removing the skin, but in the case of extruded shapes that require severe extrusion, thin oxide films or alloys are formed on the billet surface during casting of molten aluminum. There is a problem in that the segregation layer of the components causes surface defects such as entrainment of oxide film on the bearing surface of the extrusion die. In the worst case, the oxide film etc. scratches the bearing surface of the extrusion die, resulting in secondary surface defects. Therefore, it becomes necessary to remove the billet skin.
従来のビレツトの表皮除去方法と主として旋盤
を用いる方法が一般的である。ところが、現在の
アルミニウムビレツト鋳造技術では、ビレツトの
径の寸法のばらつき、ビレツトの長手方向の曲り
及びビレツト表面の凹凸が発生することはある程
度はやむを得ないとされている。このように理想
的な円柱形状でないアルミニウムビレツトを通常
の旋盤で表面切削すると、例えば酸化皮膜の厚さ
以上を切削しないと、酸化皮膜残存部が生じる。
そこで、従来の一般的方法では酸化皮膜除去必要
量以上の切込量が必要となり、不必要な歩留低下
は避けられなかつた。したがつて、このような欠
点を解消すべくワイヤブラシ、ナイロンブラシに
よる研摩、あるいはNaOH液による化学研摩等
が考案されているが、前者では必要な研摩量に達
しないし、後者は中和処理の必要性があり、又研
摩液処理上の問題等があるため旋盤による表皮除
去に代わるまでには至つていない。一方、旋盤に
よる方法の改良提案もなされており、例えばバイ
ト刃先がアルミニウムビレツトの表面をならいな
がら、絶えず一定の厚さを除去する方法がある。
しかしながら、この方法ではバイト刃先の研摩条
件と加圧条件が複雑になるという欠点が伴う。さ
らに、旋盤では、刃先の切削抵抗に打ち勝つ回転
力をビレツトに付与しなければならず、またビレ
ツトの長手方向の曲りのために押出機側で必要と
する長さに切断された定寸ビレツトのみを処理対
象としていた。 Conventional billet skin removal methods and methods that mainly use a lathe are common. However, in the current aluminum billet casting technology, it is considered that some variation in the diameter of the billet, bending in the longitudinal direction of the billet, and unevenness on the billet surface are unavoidable to some extent. When the surface of an aluminum billet, which does not have an ideal cylindrical shape, is cut with a normal lathe, for example, if the thickness of the oxide film is not exceeded, a portion of the oxide film remains.
Therefore, in the conventional general method, a depth of cut greater than the amount necessary for removing the oxide film is required, and an unnecessary decrease in yield cannot be avoided. Therefore, polishing with wire brushes, nylon brushes, chemical polishing with NaOH liquid, etc. have been devised to eliminate these drawbacks, but the former does not reach the required polishing amount, and the latter does not require the neutralization treatment. Due to the necessity and problems in processing the polishing liquid, it has not yet replaced surface removal using a lathe. On the other hand, improvements to the method using a lathe have been proposed, such as a method in which the cutting edge of the cutting tool traces the surface of the aluminum billet and continuously removes a constant thickness.
However, this method has the disadvantage that the polishing conditions and pressurizing conditions for the cutting edge become complicated. Furthermore, with a lathe, it is necessary to apply rotational force to the billet to overcome the cutting resistance of the cutting edge, and in order to bend the billet in the longitudinal direction, the extruder only cuts the billet to the required length. was targeted for processing.
また、従来の諸法では、アルミニウムビレツト
の表面に形成される、著しい高強度を有する酸化
アルミニウムがバイト刃先、ブラシ等を研摩させ
るので、刃先、ブラシ等の材質選択に工夫を要
し、しかも切削又は研摩中に刃先等が徐々に摩耗
するので、１本のビレツトについてもまた数本の
ビレツトを加工する場合には勿論、表皮除去深さ
を一定に保つことは難しい。 In addition, in conventional methods, aluminum oxide, which has extremely high strength and is formed on the surface of the aluminum billet, abrases the cutting edge, brush, etc., so it is necessary to be careful in selecting materials for the cutting edge, brush, etc. Since the cutting edge etc. gradually wear out during cutting or polishing, it is difficult to maintain a constant skin removal depth when processing one billet or several billets.
一方、NaOHによる化学的研摩法は機械的研
摩又は切削方法に比較して、表皮が表面から一定
の深さだけ除去された時点で研摩を中止すること
により、表皮除去深さを著しい高精度で且つ一様
に薄く制御できる利点があるが、中和処理、水洗
処理、その他廃液の処理設備が必要となる点で実
用化上の問題がある。 On the other hand, compared to mechanical polishing or cutting methods, the chemical polishing method with NaOH allows the depth of skin removal to be determined with significantly higher precision by stopping the polishing when the skin has been removed to a certain depth from the surface. Although it has the advantage of being able to be uniformly thin, there is a problem in practical use in that it requires neutralization treatment, water washing treatment, and other waste liquid treatment equipment.
本発明の目的は、以上の従来技術に鑑み、アル
ミニウムビレツトの表皮除去方法において、表皮
除去条件を複雑な手法で制御しなくとも表皮除去
深さを著しい高精度で制御でき且つ著しく薄く、
均一に表皮を除去できる新規な方法を提供するこ
とを目的とする。 In view of the above-mentioned prior art, an object of the present invention is to provide a method for removing skin from an aluminum billet, in which the depth of skin removal can be controlled with extremely high accuracy without controlling the skin removal conditions using a complicated method, and the billet can be made extremely thin.
The purpose of the present invention is to provide a new method that can uniformly remove the epidermis.
本発明は、アルミニウムビレツトの表皮を厚み
200ミクロン以下で酸化皮膜形成部分をレーザー
ビームの照射により大気中で除去することを特徴
とするアルミニウムビレツトの表皮除去方法にあ
る。 The present invention increases the thickness of the skin of aluminum billets.
The present invention provides a method for removing the skin of an aluminum billet, which is characterized in that the portion where an oxide film of 200 microns or less is formed is removed in the atmosphere by irradiation with a laser beam.
薄い酸化アルミニウムにより事実上被覆されて
いるアルミニウム表面の極く薄い部分を、すなわ
ち厚みで200ミクロン以下を、レーザービームを
使用し、かつアルミニウムが易酸化性であるにも
かかわらず大気中での処理で再酸化されず下地金
属が表出されることが本発明の大きな特徴であ
る。本発明によれば、数ミクロンないし数10ミク
ロンの厚さを有する酸化アルミニウム層はレーザ
ー照射後に完全に除去され、下地の金属アルミニ
ウムが完全に露出される。このようにレーザービ
ーム照射方法によれば、上記のように数ミクロン
ないし数10ミクロンの厚さのアルミニウムビレツ
トの表皮を除去でき、従来の旋盤法では到底実現
できないような極薄除去が可能となる。しかも、
アルミニウムビレツトの曲りあるいは径寸法その
他のばらつきがあつても、レーザービーム自体は
本来径が小さく、またレーザービームの焦点距離
が10mm程度変動しても、表皮除去厚さの変動は殆
どなく、押出素材として使用するには全くさしつ
かえのない程度である。次に、レーザー発生機
（源）はアルミニウムビレツトと非接触であり、
このために従来の接触方式、すなわち刃物、ブラ
シ等を用いる方式の欠点は完全に消失する。すな
わち、アルミニウムビレツトの長さ及び処理本数
如何にかかわらず、操業中に表皮除去深さが減少
することはなく、レーザー発生源とアルミニウム
ビレツト表面部との距離を正確に一定に保つ必要
もなく、このための制御機構も省略でき、表皮除
去エネルギ付与手段（刃物、レーザー光源等）の
性能劣化は全く問題にならない。したがつて、本
発明によると高歩留りが実現される。 Treatment of very thin sections of aluminum surfaces, which are effectively coated with a thin layer of aluminum oxide, i.e. less than 200 microns thick, using a laser beam and in air, despite the fact that aluminum is easily oxidized. A major feature of the present invention is that the underlying metal is exposed without being reoxidized. According to the present invention, the aluminum oxide layer having a thickness of several microns to several tens of microns is completely removed after laser irradiation, and the underlying metallic aluminum is completely exposed. As described above, the laser beam irradiation method can remove the skin of an aluminum billet with a thickness of several microns to several tens of microns, making it possible to remove an extremely thin layer that would be impossible to achieve with the conventional lathe method. Become. Moreover,
Even if there are bends in the aluminum billet or variations in diameter or other dimensions, the laser beam itself is originally small in diameter, and even if the focal length of the laser beam changes by about 10 mm, there is almost no change in the skin removal thickness, and extrusion is possible. It is completely acceptable for use as a material. Next, the laser generator (source) is not in contact with the aluminum billet,
For this reason, the disadvantages of conventional contact methods, ie methods using knives, brushes, etc., are completely eliminated. In other words, regardless of the length of the aluminum billet or the number of aluminum billets processed, the skin removal depth does not decrease during operation, and there is no need to keep the distance between the laser source and the aluminum billet surface precisely constant. Therefore, a control mechanism for this purpose can be omitted, and performance deterioration of the skin removal energy applying means (cutting tool, laser light source, etc.) is not a problem at all. Therefore, according to the present invention, a high yield is achieved.
レーザービームによるアルミニウムビレツトの
表皮除去は通常円形のアルミニウムビレツトを回
転させ、その全面にレーザービームを照射する。
したがつて全面の表皮を除去する点では従来法も
本発明も基本的には相違していない。また、レー
ザービームによる表皮除去目標厚さも従来のもの
とは相違なく、アルミニウムビレツトの酸化皮膜
を除去し、そしてその表面に偏析層がありそして
それを除去する必要がある場合は100〜200ミクロ
ンの厚さで表皮を除去する。ここで表皮除去厚さ
の制御方法は、レーザービームの径を太く（細
く）し且つ／又はレーザーの出力（レーザービー
ムのエネルギ）を増加（減少）することにより当
該厚さを多く（少なく）する方法による。 To remove the skin from an aluminum billet using a laser beam, the circular aluminum billet is usually rotated and the entire surface of the aluminum billet is irradiated with a laser beam.
Therefore, there is basically no difference between the conventional method and the present invention in that the epidermis is removed from the entire surface. In addition, the target thickness for skin removal using a laser beam is the same as the conventional one, and is 100 to 200 microns when removing the oxide film on the aluminum billet and if there is a segregation layer on the surface and it is necessary to remove it. Remove the epidermis to a thickness of . Here, the method of controlling the skin removal thickness is to increase (decrease) the thickness by increasing (decreasing) the laser beam diameter and/or increasing (decreasing) the laser output (laser beam energy). Depends on the method.
レーザーの種類としては通常レーザー加工に用
いられる固体レーザー（ルビー、YAG、等）及
び気体レーザー（CO2等）であれば特に制限はな
い。なお連続及びパルスレーザーの何れでもよい
が、パルスレーザーが好ましい。次にレーザービ
ームの径は0.1〜５mmの範囲、走査速度は１〜20
mm／秒の範囲で表皮除去厚さ及び単位ビレツト長
処理時間によつて定められる。 The type of laser is not particularly limited as long as it is a solid laser (ruby, YAG, etc.) or a gas laser (CO 2 etc.) commonly used for laser processing. Note that either continuous or pulsed lasers may be used, but pulsed lasers are preferred. Next, the diameter of the laser beam is in the range of 0.1 to 5 mm, and the scanning speed is in the range of 1 to 20 mm.
It is determined by the skin removal thickness and unit billet length processing time in the range of mm/sec.
本発明方法で除去されるアルミニウムビレツト
の表皮部は一部が蒸発し、殆どは微粉末となるの
で、これを回収するための集塵装置が必要となろ
う。 Part of the skin of the aluminum billet removed by the method of the present invention evaporates and most of it becomes fine powder, so a dust collector will be required to collect it.
次に、図面により本発明の実施例をさらに詳し
く説明する。 Next, embodiments of the present invention will be described in more detail with reference to the drawings.
第１図及び第２図において、１は固定式レーザ
ー発生源、２はシヤツター、４は集光レンズ、５
は矢印方向に回転しているアルミニウムビレツト
である。第１図においてレーザービームはアルミ
ニウムビレツト５の表面の一点に集光されている
が、アルミニウムビレツト５を矢印方向に回転さ
せながら長手方向に移動させると、全面が表皮除
去処理される。なおこの場合、固定式レーザー発
生源がパルスレーザーであると、発光している瞬
間と発光していない瞬間があるが、アルミニウム
ビレツト５の全表面で表皮が効率よく除去され
る。次に、第２図では偏光鏡３を振動させること
によつて、レーザービームの実効直径を拡大して
いる。この方法は、大出力レーザーにて高能率表
皮除去を行なう上で望ましい。 In Figures 1 and 2, 1 is a fixed laser source, 2 is a shutter, 4 is a condensing lens, and 5 is a fixed laser source.
is an aluminum billet rotating in the direction of the arrow. In FIG. 1, the laser beam is focused on one point on the surface of the aluminum billet 5, but when the aluminum billet 5 is moved in the longitudinal direction while rotating in the direction of the arrow, the entire surface is subjected to the skin removal treatment. In this case, if the fixed laser source is a pulsed laser, there will be moments when it is emitting light and moments when it is not emitting light, but the skin can be efficiently removed from the entire surface of the aluminum billet 5. Next, in FIG. 2, the effective diameter of the laser beam is expanded by vibrating the polarizing mirror 3. This method is desirable for highly efficient epidermal removal using a high-power laser.
なお、第１図及び第２図では図示されていない
が、１本のアルミニウムビレツト５に対して複数
個のレーザービーム発生源１を配置してもよい。
またレンズ４は集光レンズでも拡大レンズでもよ
い。次に、アルミニウムビレツト５を長手方向に
送る代わりに、レーザー発生源１を移動させても
よい。さらに、特に厚い除去が必要の場合は、ビ
レツト表面にレーザー吸収を高める皮膜を塗布し
てもよい。 Although not shown in FIGS. 1 and 2, a plurality of laser beam generating sources 1 may be arranged for one aluminum billet 5.
Further, the lens 4 may be a condensing lens or a magnifying lens. Then, instead of feeding the aluminum billet 5 in the longitudinal direction, the laser source 1 may be moved. Additionally, the billet surface may be coated with a coating to enhance laser absorption if particularly thick removal is required.
第３図において、アルミニウムビレツト５はロ
ーラーテーブル７により表皮除去のための定位置
まで搬送され、次にエアシリンダー８に接続され
た上下動可能の昇降テーブル９により矢印方向に
図示の位置まで引揚げられる。而して、図示の位
置でアルミニウムビレツト５は一対のロール１
１，１２により担持され、一方のロール１１は自
由に回転し、他の一方のロール１２はモーター１
３によりベルト１４を介して回転駆動されるよう
になつている。これらのロール１１，１２の表面
には適当な溝が形成されており、アルミニウムビ
レツト５を摩擦回転せしめる。必要ならば１本以
上の駆動又は非駆動ロールを増設してもよい。レ
ーザー発生源１は、全体がモーター１３又はそれ
に付設された減速機のシヤフト１５と作動的に連
結され、ロール１２の回転に同期して、図面で右
方向に移動せしめられるようになつており、この
結果アルミニウムビレツト５の全外周がレーザー
ビーム１６の照射を受ける。レーザー発生源１は
アルミニウムビレツト５と非接触であるから、レ
ーザー発生源１をアルミニウム材料の抵抗力に抗
して駆動する必要は全くない。 In FIG. 3, the aluminum billet 5 is conveyed by a roller table 7 to a fixed position for skin removal, and then pulled in the direction of the arrow to the position shown in the figure by a vertically movable lifting table 9 connected to an air cylinder 8. Fried. Thus, the aluminum billet 5 is attached to the pair of rolls 1 at the position shown in the figure.
1 and 12, one roll 11 rotates freely and the other roll 12 is supported by motor 1.
3 through a belt 14. Appropriate grooves are formed on the surfaces of these rolls 11 and 12 to allow the aluminum billet 5 to rotate by friction. If necessary, one or more driven or non-driven rolls may be added. The entire laser source 1 is operatively connected to a motor 13 or a shaft 15 of a speed reducer attached to it, and is configured to be moved rightward in the drawing in synchronization with the rotation of the roll 12. As a result, the entire outer periphery of the aluminum billet 5 is irradiated with the laser beam 16. Since the laser source 1 is not in contact with the aluminum billet 5, there is no need to drive the laser source 1 against the resistance of the aluminum material.
アルミニウムビレツト５の表皮全体の除去が終
了した時は、昇降テーブル９を上昇させ、次にそ
のロール１０を回転させ、そして搬出テーブル１
７まで移動させる。 When the entire skin of the aluminum billet 5 has been removed, the elevating table 9 is raised, the roll 10 is rotated, and the unloading table 1 is lifted.
Move it to 7.
アルミニウムビレツト５が径のばらつき又は曲
り等のために、ビレツトが偏心回転することを避
けられないが、上記方法では偏心回転に合わせて
レーザー発生源１とアルミニウムビレツト５の表
面の間隔を一定に保つ制御機構を具えなくとも、
所定の薄い表皮部を一様に除去できる点が大きな
利点となる。すなわち、レーザービーム発生源１
は水平方向に、工場の床面（装置の基底面）に対
して単に平行に、移動しさえすれば良い。また、
旋盤では最小1.5mmの表皮除去が、酸化皮膜又は
偏析層の厚さ如何にかかわらず、必要であつた
が、本発明では特別の制御機構なしで、最小で数
ミクロンの表皮除去が可能になつた。また、上記
装置は特別の雰囲気下で運転されるのではなく、
大気中にて運転される。そこで、アルミニウムは
酸化され易い金属であるので、レーザービームに
よりアルミニウムビレツトの表面が溶融して、酸
化物が形成される懸念もあつたが、以下説明する
実施例において、この酸化物形成は起こらないこ
とを確認した。 Although it is unavoidable that the aluminum billet 5 rotates eccentrically due to variations in diameter or bending, the above method keeps the distance between the laser source 1 and the surface of the aluminum billet 5 constant in accordance with the eccentric rotation. Even without a control mechanism to keep the
A major advantage is that a predetermined thin epidermis can be removed uniformly. That is, the laser beam source 1
need only be moved horizontally, simply parallel to the factory floor (the base of the device). Also,
With a lathe, it was necessary to remove a minimum of 1.5 mm regardless of the thickness of the oxide film or segregation layer, but with the present invention, it is possible to remove a minimum of several microns without a special control mechanism. Ta. Additionally, the above equipment is not operated under a special atmosphere;
Operated in the atmosphere. Since aluminum is a metal that is easily oxidized, there was a concern that the surface of the aluminum billet would be melted by the laser beam and oxides would be formed, but in the examples described below, this oxide formation did not occur. I confirmed that there was no.
実施例
６インチアルミニウム（6063）ビレツトの一部
を切断して、表面から10ミクロン、20ミクロン及
び200ミクロンの表皮部をレーザービーム照射に
より除去したところ、金属アルミニウムが露出し
ていた。レーザービーム照射条件は次のとおりで
あつた。Example When a part of a 6-inch aluminum (6063) billet was cut and skin portions of 10 microns, 20 microns and 200 microns from the surface were removed by laser beam irradiation, metal aluminum was exposed. The laser beam irradiation conditions were as follows.
(イ) レーザー装置−YAGレーザー (ロ) レーザー出力−50W (ハ) 照射方法−１〜25kHzのパルス (ニ) 焦点距離−77±５mm (ホ) レーザービーム径−0.1〜0.6mm(b) Laser equipment - YAG laser (b) Laser output −50W (c) Irradiation method - 1-25kHz pulse (d) Focal length -77±5mm (E) Laser beam diameter -0.1~0.6mm
第１図及び第２図は本発明の原理の説明図、第
３図は本発明の実施例を示す図面である。
１……レーザービーム発生源、２……シヤツタ
ー、５……アルミニウムビレツト、７……ローラ
ーテーブル、８……エアシリンダー、９……昇降
テーブル、１１，１２……ロール、１６……レー
ザービーム。
1 and 2 are explanatory diagrams of the principle of the present invention, and FIG. 3 is a drawing showing an embodiment of the present invention. 1... Laser beam source, 2... Shutter, 5... Aluminum billet, 7... Roller table, 8... Air cylinder, 9... Lifting table, 11, 12... Roll, 16... Laser beam .
Claims (1)
ロン以下で酸化皮膜形成部分をレーザービームの
照射により大気中で除去することを特徴とするア
ルミニウムビレツトの表皮除去方法。1. A method for removing the skin of an aluminum billet, which comprises removing the skin of the aluminum billet with a thickness of 200 microns or less, and removing the oxide film-forming portion in the atmosphere by irradiating a laser beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57059760A JPS58179586A (en) | 1982-04-12 | 1982-04-12 | Method and device for removing surface skin of aluminum billet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57059760A JPS58179586A (en) | 1982-04-12 | 1982-04-12 | Method and device for removing surface skin of aluminum billet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58179586A JPS58179586A (en) | 1983-10-20 |
| JPH0137239B2 true JPH0137239B2 (en) | 1989-08-04 |
Family
ID=13122538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57059760A Granted JPS58179586A (en) | 1982-04-12 | 1982-04-12 | Method and device for removing surface skin of aluminum billet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58179586A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107081529A (en) * | 2017-05-05 | 2017-08-22 | 上海航天设备制造总厂 | A kind of laser ablation method for al member top layer anode oxide film |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4626652A (en) * | 1985-03-21 | 1986-12-02 | Honeywell Inc. | Method and means of removing claddings from optical fibers |
| WO1996020435A1 (en) * | 1994-12-28 | 1996-07-04 | Shinozaki Manufacturing Co., Ltd. | Method and apparatus for processing rollers, etc, by laser beam |
| CN108325948A (en) * | 2017-12-27 | 2018-07-27 | 上海君屹工业自动化股份有限公司 | A kind of laser cleaning method of aero-engine titanium alloy parts oxide layer |
| CN109848535A (en) * | 2018-12-28 | 2019-06-07 | 北京工业大学 | A kind of the electrode laser repair system and method for electric resistance welding equipment |
| CN111495882A (en) * | 2020-04-24 | 2020-08-07 | 山东省科学院激光研究所 | Laser cleaning device |
| DE102020114477A1 (en) * | 2020-05-29 | 2021-12-02 | Homag Bohrsysteme Gmbh | Device and method for processing, in particular for refining, surfaces |
| CN111906094B (en) * | 2020-07-29 | 2022-09-20 | 中国南方电网有限责任公司超高压输电公司柳州局 | Laser cleaning agent rust removal annular joint device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50318A (en) * | 1973-05-08 | 1975-01-06 |
-
1982
- 1982-04-12 JP JP57059760A patent/JPS58179586A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50318A (en) * | 1973-05-08 | 1975-01-06 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107081529A (en) * | 2017-05-05 | 2017-08-22 | 上海航天设备制造总厂 | A kind of laser ablation method for al member top layer anode oxide film |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58179586A (en) | 1983-10-20 |
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