WO2012036008A1 - レーザ加工装置、及び、レーザ加工装置の制御方法 - Google Patents
レーザ加工装置、及び、レーザ加工装置の制御方法 Download PDFInfo
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- WO2012036008A1 WO2012036008A1 PCT/JP2011/070136 JP2011070136W WO2012036008A1 WO 2012036008 A1 WO2012036008 A1 WO 2012036008A1 JP 2011070136 W JP2011070136 W JP 2011070136W WO 2012036008 A1 WO2012036008 A1 WO 2012036008A1
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- laser
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- energy saving
- saving mode
- processing apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/102—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/104—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation in gas lasers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/041—Arrangements for thermal management for gas lasers
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- 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
- B23K26/70—Auxiliary operations or equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/0014—Monitoring arrangements not otherwise provided for
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0407—Liquid cooling, e.g. by water
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/097—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/22—Gases
- H01S3/223—Gases the active gas being polyatomic, i.e. containing two or more atoms
- H01S3/2232—Carbon dioxide (CO2) or monoxide [CO]
Definitions
- the present invention relates to a laser processing machine that can reduce energy consumption in a standby state, and a control method thereof.
- the seeding discharge [priming discharge] (base discharge) is continuously performed in the laser oscillator, and the pressure of the laser gas is changed by the gas blower [gas blower] Is maintained at the same high pressure condition.
- the temperature regulator [temperature regulator] for cooling the laser oscillator [laser oscillator] is also operated in the same manner as during processing.
- wasteful energy is consumed such that the base discharge is continued even during the standby time, and improvement is desired.
- an object of the present invention is to provide a laser processing apparatus capable of suppressing wasteful energy consumption during a standby time and a control method thereof.
- a first feature of the present invention is a laser processing apparatus, comprising: a laser oscillator; a cooler that cools the laser oscillator; and a control unit that controls the laser oscillator and the cooler;
- the unit provides a laser processing apparatus having a control unit that stops the base discharge of the laser oscillator after a lapse of a specified time from the stop of laser beam emission by the laser oscillator.
- a method for controlling a laser processing apparatus including a laser oscillator, wherein a base discharge of the laser oscillator is stopped after a first specified time has elapsed since the laser oscillator stopped emitting laser light.
- the base discharge of the laser oscillator is stopped after the lapse of the specified time (first specified time) from the stop of the emission of the laser beam, wasted energy during standby of the laser processing apparatus. (Power) consumption can be suppressed.
- FIG. 2A is a diagram corresponding to FIG. 2 in a standby state in a normal mode
- FIG. 2B is a diagram corresponding to FIG. 2 in an energy saving mode.
- A) is a graph which shows the output change of the laser oscillator in a normal mode
- (b) is a graph which shows the temperature change of the cooling water in a normal mode.
- (A) is a graph which shows the temperature setting area
- (b) shows the temperature change of the cooling water in a normal standby state or energy saving mode B. It is a graph. It is a flowchart which shows energy saving mode start operation
- the laser processing apparatus includes a processing machine body [machine main frame] 1, an assist gas supply machine [assist-gas supplier] 5, a temperature controller 9, and an NC (Numerical Control) device 11. And.
- the assist gas supply unit 5 supplies assist gas (laser gas) such as nitrogen, oxygen, and air to the processing head 3 of the processing machine body 1.
- the temperature controller 9 cools the laser oscillator 7 of the processing machine body 1.
- the NC device 11 controls the laser oscillator 7 and the temperature controller 9.
- the temperature controller 9 functions as a cooler, and the NC device 11 also functions as a control unit [control unit].
- a carbon dioxide gas laser is used, but other types of lasers may be used.
- the processing machine main body 1 includes an X-axis carriage 15 and a Y-axis carriage 17.
- the X-axis carriage 15 moves along the X-axis guide 13 with respect to the processing table.
- the Y-axis carriage 17 moves along the Y-axis direction on the X-axis carriage 15. Further, the processing head 3 described above is attached to the Y-axis carriage 17. The processing head 3 moves in the Z-axis direction on the Y-axis carriage 17.
- the laser light emitted from the laser oscillator 7 is conveyed to the machining head 3 through the X-axis guide 13, the X-axis carriage 15, and the Y-axis carriage 17, for example, by an optical fiber 18.
- the assist gas (laser gas) from the assist gas supply device 5 passes through the X axis guide 13, the X axis carriage 15, and the Y axis carriage 17 by a gas pipe [gas pipes] 19 and a switching valve [switching valve] 20. Carried to 3.
- the assist gas any one of oxygen, nitrogen, and air is selectively supplied to the processing head 3 according to the processing content.
- the temperature controller 9 circulates cooling water [coolant] as a temperature-controlling medium [thermo-regulating medium] (cooling medium) to the laser oscillator 7 through a cooling water pipe [coolant pipe] 21.
- the temperature controller 9 has a compressor (not shown), and the temperature of the compressor is controlled during temperature adjustment control for lowering the cooling water temperature.
- the NC device 11 outputs an activation / stop command [activation / stop command] or the like to the laser oscillator 7.
- the NC device 11 outputs to the temperature controller 9 an operating state of the laser oscillator 7, that is, an ON / OFF signal indicating start / stop of the laser oscillator 7.
- the laser oscillator 7 outputs a status signal [status signal] indicating that the laser oscillator 7 is being started / stopped to the NC apparatus 11.
- the temperature controller 9 also outputs an information signal [information signal] indicating that it is being activated and water temperature information to the NC device 11.
- the control unit [controller] of the NC device 11 outputs a signal for suppressing wasteful energy consumption during a time (standby time) when laser processing is not actually performed, such as during work breaks or during work preparation. Output to the temperature controller 9.
- the operation mode when a signal for suppressing unnecessary energy consumption is output is referred to as an energy saving mode [energy-saving mode].
- two stages of energy saving modes A and B can be set.
- FIG. 3A shows a standby state in the normal mode that is not the energy saving mode, and the cooling water is constantly circulated between the laser oscillator 7 and the temperature controller 9 as in the processing.
- the cooling water is used for cooling the laser power source, the internal mirror of the oscillator, and the laser gas.
- the NC device 11 outputs a stop command for stopping the emission of the laser light to the laser oscillator 7 and receives a status signal indicating that the oscillation is waiting from the laser oscillator 7.
- the NC device 11 outputs an ON signal indicating that the laser oscillator 7 is being activated to the temperature controller 9, and outputs an activation signal indicating that the temperature controller 9 is being activated. Receive from.
- FIG. 4A shows the oscillator output of the laser oscillator 7 in the standby state in the normal mode
- FIG. 4B shows the cooling water temperature of the temperature controller 9 in the standby state in the normal mode.
- the temperature controller 9 sets the temperature of the cooling water regardless of the oscillation state (laser light emission state) of the laser oscillator 7 and the standby state (base discharge state at a low discharge voltage).
- the temperature is controlled within a range of ⁇ 2 ° C. (for example, 25 ° C.). This indicates that the temperature of the cooling water is maintained substantially constant (set temperature ⁇ 2 ° C.) by the constant circulation of the cooling water.
- FIG. 3B shows a state in the energy saving mode A in contrast to the standby state in the normal mode shown in FIG.
- the NC device 11 outputs an energy saving mode A command / signal to the laser oscillator 7 and the temperature controller 9.
- the laser oscillator 7 stops the base discharge and lowers the supply pressure of the laser gas, and transmits this state signal to the NC device 11.
- the temperature controller 9 transmits an information signal related to the cooling water temperature to the NC device 11.
- the temperature controller 9 is controlled by a wide-range control in which the control temperature range is expanded.
- the upper limit temperature T is set in addition to the set temperature described above, and the control temperature range is wider than the control temperature range in the standby state in the normal mode (see FIG. 4B: set temperature ⁇ 2 ° C.).
- “ON” and “OFF” in FIG. 5A indicate the temperature control state of the temperature controller 9 (the temperature control drive state of the compressor), and “ON” and “OFF” are alternately displayed. It has been repeated.
- the laser oscillator 7 is not performing base discharge. For this reason, power consumption is reduced. Further, the temperature rise of the cooling water becomes moderate as compared with the standby state in the normal mode. When the cooling water temperature reaches the upper limit temperature T (or exceeds the upper limit temperature T), the compressor that has been stopped until then is temperature-controlled (from “OFF” to “ON”). Since the operation / stop frequency of the temperature control drive of the compressor can be reduced by the above-described wide area control, the power consumption can be reduced.
- the cooling water temperature rises due to the wide area control or the setting upper limit water temperature, but the heat generation of the laser oscillator 7 is reduced. For this reason, the laser oscillator 7 is maintained in a temperature range in which the laser oscillator 7 can be promptly shifted to the processing operation performed by emitting the laser light by the balance (cancellation).
- the base discharge of the laser oscillator 7 is stopped as in the energy saving mode A, but the supply pressure of the laser gas is maintained high as in the standby state in the normal mode.
- the cooling water temperature is controlled to a substantially constant temperature (set temperature ⁇ 2 ° C.) by the temperature controller 9 as in the standby state in the normal mode.
- shaft and the horizontal axis are made into the same reduced scale for the comparison with the graph of the energy saving mode B of FIG.5 (b), and the graph of the energy saving mode A of FIG.5 (a) mentioned above.
- the power consumption and consumption in [Table 1] are shown as relative values with the standby state in the normal mode as the reference value “100”.
- the power consumption of the laser oscillator 7 in the energy saving mode B is “62”, which is 38% lower than the standby state in the normal mode.
- the power consumption of the laser oscillator 7 in the energy saving mode A is reduced to “29” by 71% due to the lower power consumption of the blower due to the pressure reduction of the laser gas.
- the power consumption of the temperature controller 9 is “55” in the energy saving mode A in which the cooling water temperature is controlled over a wide area, and is reduced by 45%.
- the laser gas consumption is “88” in the energy saving mode A due to the reduction of the gas pressure, and is reduced by 12%.
- the laser gas consumption increases when the laser oscillator 7 is started (power on) and stopped (power off), so the energy saving mode is effective in reducing the gas consumption.
- the laser oscillator 7 is stopped, a fresh gas is re-supplied after the gas is once extracted from the gas pipe, so that a particularly large amount of gas is required.
- energy saving mode B is the transition time from normal mode (standby state) to energy saving mode B, and the return time from energy saving mode B to normal mode (standby state).
- 20/40 seconds of the energy saving mode A are a transition time from the normal mode (standby state) to the energy saving mode A and a return time from the energy saving mode A to the normal mode (standby state).
- the cooling water heating is a function for heating the cooling water to keep the temperature constant in order to prevent the cooling water temperature from being excessively lowered. In the energy saving mode, cooling water heating is not performed.
- Such an operation in the energy saving mode includes a case where the timer 11a built in the NC device 11 is used and a case where the switch 11b provided in the NC device 11 is used.
- the switch 11b By using the switch 11b, the user can arbitrarily start the energy saving mode.
- the energy saving mode can be started before the energy saving mode is started by the timer 11a.
- the base discharge laser oscillator 7 is conducted (ON) state (standby state in the normal mode) (step 601), and the start time T B of the start time T A and the energy-saving mode B of the energy-saving mode A is compared (Step 603).
- the start-up time can be arbitrarily set as the time from the standby state in the normal mode in which the emission of the laser light is stopped until the transition to the energy saving mode is started, and is shown in [Table 1].
- the transition time time required for transition
- the energy-saving mode A or B can be activated preferentially by using a timer 11a.
- the mode shifts to the energy saving mode B, and further shifts to the energy saving mode A when the time (T A ⁇ T B ) elapses (T A > T and B), in the case where the another startup time T a in a standby state in the normal mode shifts to the energy-saving mode a after the lapse (T a ⁇ T B) and can be set.
- a start time T B is the prescribed time [specified time] (first predetermined time).
- step 609 whether starting time T A has passed is determined (step 609), if the start time T A has passed, the process proceeds to the energy-saving mode A (step 611). That is, the pressure of the laser gas is lowered to reduce the supply amount of the laser gas, and the temperature setting range of the cooling water is expanded to perform wide area control. In this case, the time (T A -T B ) is the second specified time.
- step 603 determines whether or not start time T A has passed.
- step 609 determines whether or not start time T A has passed.
- the process proceeds to the energy-saving mode A (step 611).
- a starting time T A is the specified time (first predetermined time).
- step 701 it is determined whether or not a resume button (provided in the NC device 11: not shown) has been pressed (step 703).
- the resume button is pressed, the laser gas pressure is set to the normal pressure, and the energy saving mode A is shifted to the energy saving mode B (step 705).
- step 801 In the state where the base discharge of the laser oscillator 7 is being performed (ON) (standby state in the normal mode) (step 801), it is determined whether the position of the switch 11b is ON or OFF (step 803). When the switch 11b is ON, the mode shifts to the energy saving mode B (step 805), and further shifts to the energy saving mode A after a predetermined time [preset time] has elapsed (step 807).
- step 901 it is determined whether the position of the switch 11b is ON or OFF (step 903).
- the switch 11b is OFF (when it is turned OFF)
- the laser gas pressure is set to the normal pressure
- the energy saving mode A is shifted to the energy saving mode B (step 905).
- the base discharge is started (ON) after the above-described return time (see [Table 1]: 5 seconds in this case) (step 907), and the normal mode standby state is restored.
- the laser gas pressure is set to the normal pressure. Via mode B. Accordingly, the gas pressure necessary for base discharge in the standby state in the normal mode can be obtained with certainty, so that the return to the standby state in the normal mode can be performed smoothly.
- the standby state in the normal mode may be restored directly from the energy saving mode A without going through the energy saving mode B.
- the pressure of the laser gas supplied to the laser oscillator 7 is lowered after a lapse of a specified time from the stop of the laser beam emission, and the supply amount of the laser gas is reduced. Therefore, the overall power consumption can be further reduced by reducing the power consumption of the blower that supplies the laser gas, and the wasteful consumption of the laser gas can also be reduced.
- the temperature setting range of the temperature controller 9 is expanded after a lapse of a specified time from the stop of laser beam emission. Therefore, the power consumption of the temperature controller 9 is reduced.
- the cooling water temperature rises by expanding the temperature setting range, the heat generation of the laser oscillator 7 is reduced. For this reason, the laser oscillator 7 is maintained in a temperature range in which the laser oscillator 7 can be promptly shifted to the processing operation performed by emitting the laser light by the balance (cancellation).
- the energy saving mode can also be activated by using the switch 11b provided in the NC device 11 after stopping the emission of the laser beam. Therefore, it is possible to shift to the energy saving mode at any time by operating the switch 11b, and convenience is improved.
- the above-described energy saving mode A can suppress the laser gas consumption in the standby time within 12 hours from the viewpoint of the laser gas consumption. .
- energy saving of the laser oscillator 7 is realized by stopping the base discharge of the laser oscillator 7 and lowering the laser gas pressure in the standby state. At this time, since the amount of generated heat is suppressed by energy saving of the laser oscillator 7, energy saving of the temperature controller 9 can also be achieved.
- the internal temperature of the laser oscillator 7 can be maintained at a temperature at which it can be promptly restored while reducing power consumption.
- the standby mode in the normal mode is shifted to the energy saving mode.
- the “laser beam emission stop” state in this case includes not only the above-mentioned state at the time of work break or work preparation, but also the state after completion of the machining process or the machining interruption state that occurs during the machining of the workpiece. It is.
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Abstract
Description
Claims (7)
- レーザ加工装置であって、
レーザ発振器と、
前記レーザ発振器を冷却する冷却器と、
前記レーザ発振器及び前記冷却器を制御する制御ユニットとを備えており、
前記制御ユニットは、前記レーザ発振器によるレーザ光の出射停止から規定時間の経過時に前記レーザ発振器のベース放電を停止する制御部を有している。 - 前記制御部は、前記規定時間の経過時又は経過後に、前記レーザ発振器に供給されるレーザガスの供給量を低減する、請求項1に記載のレーザ加工装置。
- 前記制御部は、前記規定時間の経過時又は経過後に、前記冷却器の冷却媒体の温度設定範囲を拡大する、請求項1又は2に記載のレーザ加工装置。
- 前記レーザ発振器によるレーザ光の出射停止状態で前記制御部を動作させるスイッチをさらに備えている、請求項1~3のいずれか一項に記載のレーザ加工装置。
- レーザ発振器を備えたレーザ加工装置の制御方法であって、
前記レーザ発振器によるレーザ光の出射停止から第1規定時間経過時に、前記レーザ発振器のベース放電を停止する、レーザ加工装置の制御方法。 - 前記ベース放電の停止から第2規定時間経過時に、前記レーザ発振器に供給されるレーザガスの供給量を低減する、請求項5に記載のレーザ加工装置の制御方法。
- 前記レーザ加工装置が、前記レーザ発振器を冷却する冷却器をさらに備えており、
前記ベース放電の停止から第2規定時間経過時に、前記冷却器の冷却媒体の温度設定範囲を拡大する、請求項5又は6に記載のレーザ加工装置の制御方法。
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CN201180044185.0A CN103098320B (zh) | 2010-09-14 | 2011-09-05 | 激光加工装置以及激光加工装置的控制方法 |
KR1020137003765A KR101414542B1 (ko) | 2010-09-14 | 2011-09-05 | 레이저 가공 장치, 및 레이저 가공 장치의 제어 방법 |
EP11825014.1A EP2618433B2 (en) | 2010-09-14 | 2011-09-05 | Laser processing device, and method for controlling laser processing device |
US13/816,614 US9362706B2 (en) | 2010-09-14 | 2011-09-05 | Laser machine and controlling method of laser machine |
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JP2010205446A JP5396357B2 (ja) | 2010-09-14 | 2010-09-14 | レーザ加工装置及びその制御方法 |
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EP (1) | EP2618433B2 (ja) |
JP (1) | JP5396357B2 (ja) |
KR (1) | KR101414542B1 (ja) |
CN (1) | CN103098320B (ja) |
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JP2013187519A (ja) * | 2012-03-12 | 2013-09-19 | Panasonic Corp | レーザ発振装置およびレーザ加工機 |
WO2014038241A1 (ja) * | 2012-09-05 | 2014-03-13 | 三菱電機株式会社 | レーザ加工装置 |
US20150165561A1 (en) * | 2012-06-01 | 2015-06-18 | Snecma | Method and device for drilling a workpiece with laser pulses |
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JP5789527B2 (ja) | 2012-01-18 | 2015-10-07 | 株式会社アマダホールディングス | レーザ加工装置及びレーザ発振制御方法 |
JP5689495B2 (ja) * | 2013-04-15 | 2015-03-25 | ファナック株式会社 | 消費電力の削減制御を行うレーザ加工装置 |
JP6227586B2 (ja) * | 2015-03-31 | 2017-11-08 | ファナック株式会社 | 複数の運転モードで動作するレーザ加工システム |
US10794667B2 (en) * | 2017-01-04 | 2020-10-06 | Rolls-Royce Corporation | Optical thermal profile |
JP6871995B2 (ja) * | 2019-11-18 | 2021-05-19 | ギガフォトン株式会社 | レーザ装置及び非一過性のコンピュータ読み取り可能な記録媒体 |
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JP2013187519A (ja) * | 2012-03-12 | 2013-09-19 | Panasonic Corp | レーザ発振装置およびレーザ加工機 |
US20150165561A1 (en) * | 2012-06-01 | 2015-06-18 | Snecma | Method and device for drilling a workpiece with laser pulses |
US9713855B2 (en) * | 2012-06-01 | 2017-07-25 | Snecma | Method and device for drilling a workpiece with laser pulses |
WO2014038241A1 (ja) * | 2012-09-05 | 2014-03-13 | 三菱電機株式会社 | レーザ加工装置 |
JP5452784B1 (ja) * | 2012-09-05 | 2014-03-26 | 三菱電機株式会社 | レーザ加工装置 |
CN104602859A (zh) * | 2012-09-05 | 2015-05-06 | 三菱电机株式会社 | 激光加工装置 |
CN104602859B (zh) * | 2012-09-05 | 2016-05-18 | 三菱电机株式会社 | 激光加工装置 |
US9446481B2 (en) | 2012-09-05 | 2016-09-20 | Mitsubishi Electric Corporation | Laser machining device |
Also Published As
Publication number | Publication date |
---|---|
TW201210724A (en) | 2012-03-16 |
JP2012064636A (ja) | 2012-03-29 |
TWI436844B (zh) | 2014-05-11 |
KR20130056285A (ko) | 2013-05-29 |
EP2618433A4 (en) | 2014-06-18 |
EP2618433B2 (en) | 2022-04-27 |
US9362706B2 (en) | 2016-06-07 |
CN103098320B (zh) | 2016-05-25 |
US20130170514A1 (en) | 2013-07-04 |
EP2618433A1 (en) | 2013-07-24 |
JP5396357B2 (ja) | 2014-01-22 |
KR101414542B1 (ko) | 2014-07-02 |
CN103098320A (zh) | 2013-05-08 |
EP2618433B1 (en) | 2019-08-21 |
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