US20010027965A1 - Method for gas assisted energy beam engraving of a target object - Google Patents
Method for gas assisted energy beam engraving of a target object Download PDFInfo
- Publication number
- US20010027965A1 US20010027965A1 US09/873,722 US87372201A US2001027965A1 US 20010027965 A1 US20010027965 A1 US 20010027965A1 US 87372201 A US87372201 A US 87372201A US 2001027965 A1 US2001027965 A1 US 2001027965A1
- Authority
- US
- United States
- Prior art keywords
- target object
- energy beam
- cover gas
- laser
- gaseous environment
- 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.)
- Abandoned
Links
Images
Classifications
-
- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
- B23K26/125—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases of mixed gases
-
- 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
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
-
- 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
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B7/00—Machines, apparatus or hand tools for branding, e.g. using radiant energy such as laser beams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/22—Removing surface-material, e.g. by engraving, by etching
- B44C1/228—Removing surface-material, e.g. by engraving, by etching by laser radiation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/0036—Laser treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/0045—Irradiation; Radiation, e.g. with UV or IR
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
-
- 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
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
-
- 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
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
- B23K2103/52—Ceramics
Abstract
This invention relates to a method for gas assisted energy beam engraving of a target object. This invention employs and energy beam, such as a laser beam or an electron beam, to irradiate a target object in the presence of a selected gaseous environment in order to engrave a mark in the object.
Description
- This application is a continuation of application Ser. No. 09/413,972, filed on Oct. 7, 1999.
- 1. Field of the Invention
- This invention relates to a method for gas assisted energy beam engraving of a target object. This invention employs an energy beam, such as a laser beam or an electron beam, to irradiate a target object in the presence of a selected gaseous environment in order to engrave a mark in said object.
- 2. Description of the Prior Art
- Laser beams have been employed to engrave marks on the surface of target objects. Prior art methods of laser engraving have been carried out in the ambient atmospheric environment.
- Ambient environment laser engraving results in a limited degree of contrast between the engraved mark and the background on which it is placed, the speed with which the mark can be applied, and the number of different materials which can be marked.
- The present invention provides an improved method for energy beam engraving, in which an energy beam, such as a laser beam, is used to engrave a target object in the presence of a selected gaseous environment. This improved method provides enhanced contrast, increased readability, increased marking speeds, and an increased number of materials which can be marked by the energy beam.
- The present invention is directed toward a method of gas assisted energy beam engraving of a target object. This invention comprises placing a target object in a controlled gaseous environment, irradiating the target object with an energy beam at a sufficient power level and beam size to engrave a mark in the target object, while the portion of the object being irradiated is present in the controlled gaseous environment. This method further comprises causing relative movement at a preselected speed between the energy beam and the target object during irradiation.
- FIG. 1 is a block diagram of a first embodiment of the present invention.
- FIG. 2 is a block diagram of a second embodiment of the present invention.
- FIG. 3 is a block diagram of a third embodiment of the present invention.
- FIG. 4 is a block diagram of a preferred embodiment of covering a target with a covering gas, using the method of the present invention.
- In a first embodiment, the present invention comprises placing a target object in a controlled gaseous environment, as shown in block10 of FIG. 1. In preferred embodiments, the gaseous environment comprises argon, nitrogen, oxygen, or carbon dioxide.
- The invention further comprises irradiating the target object with an energy beam at a sufficient power level and beam size to engrave a mark in the target object while the portion of the object being irradiated is present in the controlled gaseous environment, as shown in block12 of FIG. 1. In a preferred embodiment, the target object comprises stainless steel, aluminum, or titanium. In another preferred embodiment, the target object is a ceramic.
- In one preferred embodiment, the energy beam is a laser beam. In a preferred embodiment, the laser is emitted from a Model LD-100 Desktop Laser Marker, available from Laser Marking Technologies, LLC of Lafayette, Colorado. In this embodiment, the laser beam is emitted at a current level of six to ten amperes. In another preferred embodiment, the laser is emitted at a current level of at least six amperes. In another preferred embodiment, the energy beam is an electron beam.
- A second embodiment of the present invention is directed toward a method for gas assisted laser engraving of a target object. This embodiment comprises irradiating a target object with a laser beam at a sufficient power level and beam size to engrave a mark in the target object, as shown in block20 of FIG. 2. This method further comprises covering the surface of the target object which is being irradiated with a selected cover gas, simultaneously while the irradiation is taking place, as shown in block 22 of FIG. 2. The term “cover gas,” as used herein, refers to any reducing gas, inert gas, or oxidizing gas. Oxidizing gases facilitate oxidation reactions. Reducing gases facilitate reduction reactions.
- In a preferred embodiment, the cover gas is ejected from a nozzle. In another preferred embodiment, the cover gas is heavier than the gas composition which makes up the earth's atmosphere.
- This method further comprises causing relative movement at a preselected speed between the laser beam and the target object, such that the engraved mark is a preselected pattern. This relative movement occurs simultaneously with the irradiation, as shown in block24 of FIG. 2. This relative movement may take place by moving the laser in incremental steps, each step being no greater than 60 microns in size.
- In a preferred embodiment, the relative movement comprises moving a laser which emits the laser beam. In the preferred embodiment using the Model LD-100 Desktop Laser Marker, the laser is moved at a speed of up to three meters per second. The appropriate speed will be a function of the target composition and the desired depth of engraving. In another preferred embodiment, causing relative movement comprises moving the target object.
- A third embodiment of the present invention is depicted in FIG. 3. This embodiment comprises emitting a laser beam from a laser at a sufficient power level and beam size to engrave a target object, as shown in block30 of FIG. 3. This method further comprises moving the laser in a preselected pattern to produce a preselected mark on the target object, as shown in block 32 of FIG. 3.
- This embodiment of the invention further comprises covering the surface of the target object which is being irradiated with a selected cover gas, as shown in block34 of FIG. 3. This step is carried out simultaneously with the steps shown in blocks 30 and 32 of FIG. 3.
- In a preferred embodiment, the covering comprises emitting the cover gas from a nozzle, as shown in block36 of FIG. 4. The covering further comprises moving the nozzle such that the cover gas is directed at the regions of the target object being irradiated, as shown in block 38 of FIG. 4.
- In a preferred embodiment, the cover gas comprises one or more gases selected from the group consisting of argon, nitrogen, oxygen, and carbon dioxide.
- The foregoing disclosure and description of the invention are illustrative and explanatory. Various changes in the size, shape, and materials, as well as in the details of the illustrative embodiments may be made without departing from the spirit of the invention.
Claims (18)
1. A method for gas assisted energy beam engraving of a target object, comprising:
a. placing at least a portion of the target object in a controlled gaseous environment;
b. energizing a source of an energy beam with at least six amperes of current, the energy beam further comprising a beam size sufficient to engrave a mark in the target object to predetermined dimensions;
c. irradiating a desired portion of the target object with the energy beam while the desired portion of the target object being irradiated is present in the controlled gaseous environment; and
d. causing relative movement between the energy beam and the target object during the irradiating, the movement occurring in a predetermined manner to create a desired engraved pattern in the target object.
2. The method of , wherein the gaseous environment comprises reducing gases, inert gases, oxidizing gases, or combinations thereof.
claim 1
3. The method of , wherein the energy beam is a laser beam.
claim 1
4. The method of , wherein the target object comprises ceramics, stainless steel, aluminum, and titanium.
claim 1
5. A method for gas assisted laser engraving of a target object, comprising:
a. placing at least a portion of the target object into a controlled gaseous environment;
b. irradiating at least a portion of the target object in the controlled gaseous environment with a laser beam from a laser, the laser drawing a current level of at least six amperes, the laser beam further comprising sufficient power and beam dimensions to engrave a desired mark in the target object;
c. simultaneously with the irradiating, covering a surface of the target object which is being irradiated with a predetermined cover gas; and
d. simultaneously with the irradiating, causing relative movement between the laser beam and the target object, at a preselected speed to create a desired pattern.
6. The method of , wherein the cover gas in step (c) is ejected from a nozzle in communication with a source of cover gas and the controlled gaseous environment.
claim 5
7. The method of , further comprising moving the nozzle such that the cover gas is directed at the surface of the target object being irradiated.
claim 6
8. The method of , wherein the cover gas is heavier than the gas composition which makes up the earth's atmosphere.
claim 5
9. The method of , wherein step (d) further comprises moving a laser which emits the laser beam.
claim 5
10. The method of , wherein step (d) further comprises moving the target object.
claim 5
11. The method of , wherein the cover gas comprises gases selected from the group of gasses consisting of argon, nitrogen, oxygen, carbon dioxide, or combinations thereof.
claim 5
12. The method of , wherein the target object comprises metallic objects and ceramic objects.
claim 5
13. A system for engraving, comprising:
a. a controlled gaseous environment;
b. a target holder disposed within the controlled gaseous environment, the target holder having sufficient size to support a target object to be engraved in the controlled gaseous environment;
c. an energy beam device drawing at least six amperes, the energy beam device able to generate an energy beam of predetermined dimensions that can be made to irradiate a predetermined portion of the target object;
d. a source of cover gas; and
e. an outlet for the cover gas in communication with the controlled gaseous environment and the source of cover gas.
14. The system of further comprising a controllable energy beam moving device coupled to the energy beam device, the energy beam moving device having a controllable incremental step movement of an approximately 60 micron step size.
claim 13
15. The system of further comprising a controllable target object moving device.
claim 13
16. The system of wherein the energy beam device is a laser.
claim 13
17. The system of wherein the outlet for the cover gas further comprises a nozzle in communication with the source of cover gas, the nozzle further capable of being directed at regions of the target object being irradiated.
claim 13
18. The system of , wherein the cover gas comprises gases selected from the group consisting of argon, nitrogen, oxygen, carbon dioxide, and combinations thereof.
claim 13
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/873,722 US20010027965A1 (en) | 1999-10-07 | 2001-06-04 | Method for gas assisted energy beam engraving of a target object |
US10/208,227 US6660962B2 (en) | 1999-10-07 | 2002-07-30 | Method for gas assisted energy beam engraving of a target object |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41397299A | 1999-10-07 | 1999-10-07 | |
US09/873,722 US20010027965A1 (en) | 1999-10-07 | 2001-06-04 | Method for gas assisted energy beam engraving of a target object |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US41397299A Continuation | 1999-10-07 | 1999-10-07 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/208,227 Continuation US6660962B2 (en) | 1999-10-07 | 2002-07-30 | Method for gas assisted energy beam engraving of a target object |
Publications (1)
Publication Number | Publication Date |
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US20010027965A1 true US20010027965A1 (en) | 2001-10-11 |
Family
ID=23639421
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/873,722 Abandoned US20010027965A1 (en) | 1999-10-07 | 2001-06-04 | Method for gas assisted energy beam engraving of a target object |
US10/208,227 Expired - Fee Related US6660962B2 (en) | 1999-10-07 | 2002-07-30 | Method for gas assisted energy beam engraving of a target object |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/208,227 Expired - Fee Related US6660962B2 (en) | 1999-10-07 | 2002-07-30 | Method for gas assisted energy beam engraving of a target object |
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US (2) | US20010027965A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040140292A1 (en) * | 2002-10-21 | 2004-07-22 | Kelley John E. | Micro-welded gun barrel coatings |
WO2004066895A1 (en) * | 2003-01-17 | 2004-08-12 | Cabot Safety Intermediate Corporation | A method of forming an earplug by laser ablation and an earplug formed thereby |
US6984803B1 (en) | 2004-09-09 | 2006-01-10 | Epilog Corporation | Low profile laser assembly |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060000814A1 (en) * | 2004-06-30 | 2006-01-05 | Bo Gu | Laser-based method and system for processing targeted surface material and article produced thereby |
DE102007054073A1 (en) * | 2007-11-13 | 2009-05-14 | Carl Zeiss Nts Gmbh | System and method for editing an object |
DE102008009640A1 (en) | 2008-02-18 | 2009-08-27 | Carl Zeiss Nts Gmbh | processing system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3636251A (en) * | 1968-08-28 | 1972-01-18 | Quantronix Corp | Laser facsimile system for engraving printing plates |
US4480169A (en) * | 1982-09-13 | 1984-10-30 | Macken John A | Non contact laser engraving apparatus |
US5308431A (en) * | 1986-04-18 | 1994-05-03 | General Signal Corporation | System providing multiple processing of substrates |
US4801352A (en) * | 1986-12-30 | 1989-01-31 | Image Micro Systems, Inc. | Flowing gas seal enclosure for processing workpiece surface with controlled gas environment and intense laser irradiation |
US5322436A (en) * | 1992-10-26 | 1994-06-21 | Minnesota Mining And Manufacturing Company | Engraved orthodontic band |
US5554415A (en) * | 1994-01-18 | 1996-09-10 | Qqc, Inc. | Substrate coating techniques, including fabricating materials on a surface of a substrate |
US5614114A (en) * | 1994-07-18 | 1997-03-25 | Electro Scientific Industries, Inc. | Laser system and method for plating vias |
US5563095A (en) * | 1994-12-01 | 1996-10-08 | Frey; Jeffrey | Method for manufacturing semiconductor devices |
US5874011A (en) * | 1996-08-01 | 1999-02-23 | Revise, Inc. | Laser-induced etching of multilayer materials |
-
2001
- 2001-06-04 US US09/873,722 patent/US20010027965A1/en not_active Abandoned
-
2002
- 2002-07-30 US US10/208,227 patent/US6660962B2/en not_active Expired - Fee Related
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040140292A1 (en) * | 2002-10-21 | 2004-07-22 | Kelley John E. | Micro-welded gun barrel coatings |
WO2004066895A1 (en) * | 2003-01-17 | 2004-08-12 | Cabot Safety Intermediate Corporation | A method of forming an earplug by laser ablation and an earplug formed thereby |
US20080093158A1 (en) * | 2003-01-17 | 2008-04-24 | Cabot Safety Intermediate Corporation | Method of forming an earplug by laser ablation and an earplug formed thereby |
US7370655B2 (en) | 2003-01-17 | 2008-05-13 | Cabot Safety Intermediate Corporation | Method of forming an earplug by laser ablation and an earplug formed thereby |
CN100411599C (en) * | 2003-01-17 | 2008-08-20 | 卡伯特安全介质股份有限公司 | Method of forming an earplug by laser ablation and an earplug formed thereby |
AU2004207440B2 (en) * | 2003-01-17 | 2009-12-17 | 3M Innovative Properties Company | A method of forming an earplug by laser ablation and an earplug formed thereby |
AU2004207440B8 (en) * | 2003-01-17 | 2009-12-24 | 3M Innovative Properties Company | A method of forming an earplug by laser ablation and an earplug formed thereby |
US7793663B2 (en) | 2003-01-17 | 2010-09-14 | 3M Innovative Properties Company | Method of forming an earplug by laser ablation and an earplug formed thereby |
US6984803B1 (en) | 2004-09-09 | 2006-01-10 | Epilog Corporation | Low profile laser assembly |
Also Published As
Publication number | Publication date |
---|---|
US6660962B2 (en) | 2003-12-09 |
US20020190036A1 (en) | 2002-12-19 |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |