WO2009016645A2 - Procédé et appareil pour découper un métal de feuille par laser à fibre avec un moteur linéaire - Google Patents

Procédé et appareil pour découper un métal de feuille par laser à fibre avec un moteur linéaire Download PDF

Info

Publication number
WO2009016645A2
WO2009016645A2 PCT/IN2007/000499 IN2007000499W WO2009016645A2 WO 2009016645 A2 WO2009016645 A2 WO 2009016645A2 IN 2007000499 W IN2007000499 W IN 2007000499W WO 2009016645 A2 WO2009016645 A2 WO 2009016645A2
Authority
WO
WIPO (PCT)
Prior art keywords
sheet metal
laser
fiber laser
cutting
metal cutting
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.)
Ceased
Application number
PCT/IN2007/000499
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English (en)
Other versions
WO2009016645A3 (fr
Inventor
Arvindbhai Lavjibhai Patel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALP MULTITECH PVT Ltd
Original Assignee
ALP MULTITECH PVT Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ALP MULTITECH PVT Ltd filed Critical ALP MULTITECH PVT Ltd
Publication of WO2009016645A2 publication Critical patent/WO2009016645A2/fr
Publication of WO2009016645A3 publication Critical patent/WO2009016645A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • 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
    • B23K26/083—Devices involving movement of the workpiece in at least one axial direction
    • B23K26/0853—Devices involving movement of the workpiece in at least two axial directions, e.g. in a plane
    • B23K26/0861—Devices involving movement of the workpiece in at least two axial directions, e.g. in a plane in at least three axial directions
    • 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
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/1462—Nozzles; Features related to nozzles
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/18—Sheet panels
    • 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
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys

Definitions

  • the present invention relates to a laser cutting method for cutting sheet metal using source of the fiber laser with liner motor.
  • laser cutting using a laser source of the CO 2 type to generate a laser beam with a wavelength of 10.6 m and power ranging up to 6 kW is widely used in industry.
  • the present method is used in particular for cutting sheet metal.
  • CO 2 laser is replaced by fiber laser.
  • the present method has higher electrical efficiency without laser generating gas.
  • the present invention method has higher cutting speed hence per hour cost is decreased by 2.5 times then that of CO 2
  • the cutting speeds that can be achieved and the cutting quality that results are very variable, depending on the material to be cut and moreover depending on the cutting method parameters adopted, such as the nature of the assistance gas, the diameter of the focused beam, the power of the incident laser etc.
  • CO 2 laser cannot be used with assistance gases of low-ionization potential, for example such as argon, without the risk of generating parasitic plasmas that could impair the method
  • CO 2 laser are limited in terms of power, thereby directly impacting the cutting speed.
  • the fact of having to guide the laser beam from the laser generator right to the focusing head, that is to say the cutting head, has drawbacks, especially as regards alignment of the optics in the optical path.
  • guiding optics are generally polished and/or coated copper mirrors and their positions determine the path followed by the laser beam. Therefore, the alignment of the mirrors must be perfect in order to ensure optimum entry of the Ia, ser beam into the focusing head or cutting head.
  • the position of these mirrors is generally adjusted by mechanical means, which may easily go out of alignment according to the wear of parts and the environmental conditions, such as the ambient temperature, moisture content, etc.
  • the optical path of the beam must necessarily be kept in an inert atmosphere in order to avoid any contamination and to maintain a medium with a constant optical index, which is necessary for good propagation of the beam.
  • the quality factor for beam parameter product (BPP) of the high-power CO2 laser beams used in cutting generally being between 3 mm.mrad and 6 mm.mrad.
  • BPP beam parameter product
  • the present invention relates to METHOD AND APPARATUS FOR SHEET METAL CUTTING BY FIBER LASER WITH LINER MOTOR is invented.
  • FIG. 1 Side view of sheet metal cutting by fiber laser with liner motor
  • Fig. 2 Top view of sheet metal cutting by fiber laser with liner motor
  • FIG. 3 Front view of sheet metal cutting by fiber laser with liner motor Fig.4 graph of laser cutting speed with thickness of 2k fiber laser
  • Single mode fiber laser is an efficient, reliable and compact solution for micro machining. Since overall efficiency is high, most fiber lasers are powered by a standard 110V supply. Average power levels upto IOOW are possible with air-cooling.
  • Fiber laser cutting system consists of CNC motion system, fiber laser source, beam collimator and cutting head.
  • Cutting head includes a focusing optic and an assist gas nozzle.
  • Liner Motors offer enhanced dynamic response and speed significantly velocities up to 300m/min and acceleration of up to 45g are theoretically possible.
  • the present system comprises of 2OW to IOOOOW laser source.
  • Laser has variable parameter of laser power from 10 % to 100%. This power variation can be done on process by CNC controller through analogue port 0-10 power variation feature. Laser power can be varied offline or can be part of ongoing process Le; for on process it is by G-code of CNC system also.
  • This feature will make possible to cut small thickness of sheet metal. Modulation of power will make piercing cycle efficient.
  • Laser power can switch on/off by 24V signal. It is interfaced with CNC M-fimction (high speed i/o) so, that it can be offline & online with help of programming. By modulation of variable frequency and pulse width, this input can make piercing cycle smooth also. Simultaneously, it synchronies different thickness with contour of small to big shapes with good cutting quality, less distortion and heat affected zone.
  • laser beam is delivered by fiber of 50 / 100 / 150 / 200 micron with the help of collimator of 4Ox / 6Ox / 10Ox / 12Ox. So that beam diversion is reduced and beam coming out from collimator would be of 5 -mm to 20-mm collimated.
  • This collimated beam is focused on workpiece by different focusing lens (50mm-400 mm focal length) according to spot size and depth of field required. This makes possible to cut variable thickness.
  • Fiber[E], collimator and lenses are mounted on a capacitive focusing head that kept on Z-axis[C]. Z-axis travel range is from 50mm - 500mm.
  • Z-axis is close loop controlled by stand off distance adjustment capacity of focusing head electronics.
  • the focusing will be automatically controlled by height sensor (capacitive), CNC system and
  • X & Y-axis [A and B] Gantry, mounted with linear (magnetic) motor and LM guide having max speed of 250 mt/min at 3 G or more moves laser cutting head fast which makes positioning and cutting process fast.
  • X & Y linear motor is selected with suitable torque, speed, acceleration and gantry load.
  • Sheet metal can be mounted on a flexible table independent of X & Y axis.
  • Auto sheet loader or shuttle table controlled by CNC system can be used for sheet metal' mounting.
  • Auto sheet loader and shuttle table are driven either by hydraulic or by electrical actuator driver.
  • the flexible table is replaced by hydraulic or rack & pinion or chain-drive mechanism.
  • Fiber laser cutting system has no or low maintenance as compare to CO 2 laser cutting.
  • the Fiber laser cutting system has no internal or external optics.
  • the fiber laser cutting system running with very low cost.
  • the fiber laser cutting system has higher cutting thickness with same power and higher cutting speed with same power & thickness.
  • the fiber laser cutting system is easily integrated for 3D cutting.
  • Fiber laser system is used in the field of micromachining, thermal printing, engraving, cutting, drilling, welding and sintering.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

Le système de découpe laser de fibre n'a pas d'optique interne ou externe. Le système de découpe laser à fibre fonctionne à très faible coût. Le système à découpe laser à fibre a une épaisseur de coupe supérieure et une vitesse de découpe supérieure avec la même puissance. Le système de coupe laser de fibre est facilement intégré pour une découpe en trois dimensions. Le système laser de fibre est utilisé dans le domaine du micro-usinage, de l'impression thermique, de la gravure, de la découpe, du forage, de la soudure et du frittage.
PCT/IN2007/000499 2007-07-31 2007-10-22 Procédé et appareil pour découper un métal de feuille par laser à fibre avec un moteur linéaire Ceased WO2009016645A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1452MU2007 2007-07-31
IN1452/MUM/2007 2007-07-31

Publications (2)

Publication Number Publication Date
WO2009016645A2 true WO2009016645A2 (fr) 2009-02-05
WO2009016645A3 WO2009016645A3 (fr) 2009-09-24

Family

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Application Number Title Priority Date Filing Date
PCT/IN2007/000499 Ceased WO2009016645A2 (fr) 2007-07-31 2007-10-22 Procédé et appareil pour découper un métal de feuille par laser à fibre avec un moteur linéaire

Country Status (1)

Country Link
WO (1) WO2009016645A2 (fr)

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WO2012080883A1 (fr) 2010-12-16 2012-06-21 Bystronic Laser Ag Dispositif d'usinage au faisceau laser et procédé d'usinage laser comprenant une lentille unique pour la focalisation de la lumière
WO2013041936A1 (fr) * 2011-09-21 2013-03-28 Align Technology, Inc. Système de découpe au laser et procédé de découpe au laser
US9339890B2 (en) 2011-12-13 2016-05-17 Hypertherm, Inc. Optimization and control of beam quality for material processing
US10390913B2 (en) 2018-01-26 2019-08-27 Align Technology, Inc. Diagnostic intraoral scanning
US10470847B2 (en) 2016-06-17 2019-11-12 Align Technology, Inc. Intraoral appliances with sensing
US10504386B2 (en) 2015-01-27 2019-12-10 Align Technology, Inc. Training method and system for oral-cavity-imaging-and-modeling equipment
US10509838B2 (en) 2016-07-27 2019-12-17 Align Technology, Inc. Methods and apparatuses for forming a three-dimensional volumetric model of a subject's teeth
US10517482B2 (en) 2017-07-27 2019-12-31 Align Technology, Inc. Optical coherence tomography for orthodontic aligners
US10524881B2 (en) 2010-04-30 2020-01-07 Align Technology, Inc. Patterned dental positioning appliance
US10537405B2 (en) 2014-11-13 2020-01-21 Align Technology, Inc. Dental appliance with cavity for an unerupted or erupting tooth
US10543064B2 (en) 2008-05-23 2020-01-28 Align Technology, Inc. Dental implant positioning
US10548700B2 (en) 2016-12-16 2020-02-04 Align Technology, Inc. Dental appliance etch template
US10595966B2 (en) 2016-11-04 2020-03-24 Align Technology, Inc. Methods and apparatuses for dental images
US10613515B2 (en) 2017-03-31 2020-04-07 Align Technology, Inc. Orthodontic appliances including at least partially un-erupted teeth and method of forming them
US10610332B2 (en) 2012-05-22 2020-04-07 Align Technology, Inc. Adjustment of tooth position in a virtual dental model
US10639134B2 (en) 2017-06-26 2020-05-05 Align Technology, Inc. Biosensor performance indicator for intraoral appliances
US10758321B2 (en) 2008-05-23 2020-09-01 Align Technology, Inc. Smile designer
US10779718B2 (en) 2017-02-13 2020-09-22 Align Technology, Inc. Cheek retractor and mobile device holder
US10813720B2 (en) 2017-10-05 2020-10-27 Align Technology, Inc. Interproximal reduction templates
US10842601B2 (en) 2008-06-12 2020-11-24 Align Technology, Inc. Dental appliance
US10885521B2 (en) 2017-07-17 2021-01-05 Align Technology, Inc. Method and apparatuses for interactive ordering of dental aligners
US10893918B2 (en) 2012-03-01 2021-01-19 Align Technology, Inc. Determining a dental treatment difficulty
US10919209B2 (en) 2009-08-13 2021-02-16 Align Technology, Inc. Method of forming a dental appliance
US10980613B2 (en) 2017-12-29 2021-04-20 Align Technology, Inc. Augmented reality enhancements for dental practitioners
US10993783B2 (en) 2016-12-02 2021-05-04 Align Technology, Inc. Methods and apparatuses for customizing a rapid palatal expander
US11026768B2 (en) 1998-10-08 2021-06-08 Align Technology, Inc. Dental appliance reinforcement
US11026831B2 (en) 2016-12-02 2021-06-08 Align Technology, Inc. Dental appliance features for speech enhancement
US11045283B2 (en) 2017-06-09 2021-06-29 Align Technology, Inc. Palatal expander with skeletal anchorage devices
US11083545B2 (en) 2009-03-19 2021-08-10 Align Technology, Inc. Dental wire attachment
US11096763B2 (en) 2017-11-01 2021-08-24 Align Technology, Inc. Automatic treatment planning
US11103330B2 (en) 2015-12-09 2021-08-31 Align Technology, Inc. Dental attachment placement structure
US11116605B2 (en) 2017-08-15 2021-09-14 Align Technology, Inc. Buccal corridor assessment and computation
US11123156B2 (en) 2017-08-17 2021-09-21 Align Technology, Inc. Dental appliance compliance monitoring
US11213368B2 (en) 2008-03-25 2022-01-04 Align Technology, Inc. Reconstruction of non-visible part of tooth
US11219506B2 (en) 2017-11-30 2022-01-11 Align Technology, Inc. Sensors for monitoring oral appliances
US11273011B2 (en) 2016-12-02 2022-03-15 Align Technology, Inc. Palatal expanders and methods of expanding a palate
US11376101B2 (en) 2016-12-02 2022-07-05 Align Technology, Inc. Force control, stop mechanism, regulating structure of removable arch adjustment appliance
US11419702B2 (en) 2017-07-21 2022-08-23 Align Technology, Inc. Palatal contour anchorage
US11426259B2 (en) 2012-02-02 2022-08-30 Align Technology, Inc. Identifying forces on a tooth
US11436191B2 (en) 2007-11-08 2022-09-06 Align Technology, Inc. Systems and methods for anonymizing patent images in relation to a clinical data file
US11432908B2 (en) 2017-12-15 2022-09-06 Align Technology, Inc. Closed loop adaptive orthodontic treatment methods and apparatuses
US11471252B2 (en) 2008-10-08 2022-10-18 Align Technology, Inc. Dental positioning appliance having mesh portion
US11534268B2 (en) 2017-10-27 2022-12-27 Align Technology, Inc. Alternative bite adjustment structures
US11534974B2 (en) 2017-11-17 2022-12-27 Align Technology, Inc. Customized fabrication of orthodontic retainers based on patient anatomy
US11554000B2 (en) 2015-11-12 2023-01-17 Align Technology, Inc. Dental attachment formation structure
US11564777B2 (en) 2018-04-11 2023-01-31 Align Technology, Inc. Releasable palatal expanders
US11576752B2 (en) 2017-10-31 2023-02-14 Align Technology, Inc. Dental appliance having selective occlusal loading and controlled intercuspation
US11596502B2 (en) 2015-12-09 2023-03-07 Align Technology, Inc. Dental attachment placement structure
US11612455B2 (en) 2016-06-17 2023-03-28 Align Technology, Inc. Orthodontic appliance performance monitor
US11612454B2 (en) 2010-04-30 2023-03-28 Align Technology, Inc. Individualized orthodontic treatment index
US11633268B2 (en) 2017-07-27 2023-04-25 Align Technology, Inc. Tooth shading, transparency and glazing
US11638629B2 (en) 2014-09-19 2023-05-02 Align Technology, Inc. Arch expanding appliance
US11744677B2 (en) 2014-09-19 2023-09-05 Align Technology, Inc. Arch adjustment appliance
US11931222B2 (en) 2015-11-12 2024-03-19 Align Technology, Inc. Dental attachment formation structures
US11937991B2 (en) 2018-03-27 2024-03-26 Align Technology, Inc. Dental attachment placement structure
US11996181B2 (en) 2017-06-16 2024-05-28 Align Technology, Inc. Automatic detection of tooth type and eruption status
US12090020B2 (en) 2017-03-27 2024-09-17 Align Technology, Inc. Apparatuses and methods assisting in dental therapies
US12171575B2 (en) 2017-10-04 2024-12-24 Align Technology, Inc. Intraoral systems and methods for sampling soft-tissue
US12274597B2 (en) 2017-08-11 2025-04-15 Align Technology, Inc. Dental attachment template tray systems

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ITVI20050339A1 (it) * 2005-12-20 2007-06-21 Livio Campana Macchina utensile per il taglio laser di materiali in lastre e in tubi

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US11026768B2 (en) 1998-10-08 2021-06-08 Align Technology, Inc. Dental appliance reinforcement
US11436191B2 (en) 2007-11-08 2022-09-06 Align Technology, Inc. Systems and methods for anonymizing patent images in relation to a clinical data file
US11213368B2 (en) 2008-03-25 2022-01-04 Align Technology, Inc. Reconstruction of non-visible part of tooth
US10758321B2 (en) 2008-05-23 2020-09-01 Align Technology, Inc. Smile designer
US10543064B2 (en) 2008-05-23 2020-01-28 Align Technology, Inc. Dental implant positioning
US10842601B2 (en) 2008-06-12 2020-11-24 Align Technology, Inc. Dental appliance
US11471252B2 (en) 2008-10-08 2022-10-18 Align Technology, Inc. Dental positioning appliance having mesh portion
US11083545B2 (en) 2009-03-19 2021-08-10 Align Technology, Inc. Dental wire attachment
US10919209B2 (en) 2009-08-13 2021-02-16 Align Technology, Inc. Method of forming a dental appliance
US11612454B2 (en) 2010-04-30 2023-03-28 Align Technology, Inc. Individualized orthodontic treatment index
US10524881B2 (en) 2010-04-30 2020-01-07 Align Technology, Inc. Patterned dental positioning appliance
US11154948B2 (en) 2010-12-16 2021-10-26 Bystronic Laser Ag Laser beam machining device and a process of laser machining comprising a single lens for light focussing
WO2012080883A1 (fr) 2010-12-16 2012-06-21 Bystronic Laser Ag Dispositif d'usinage au faisceau laser et procédé d'usinage laser comprenant une lentille unique pour la focalisation de la lumière
EP3693122A1 (fr) 2010-12-16 2020-08-12 Bystronic Laser AG Dispositif d'usinage au faisceau laser comprenant une lentille unique pour la focalisation de la lumière
CN103842124A (zh) * 2011-09-21 2014-06-04 阿莱恩技术有限公司 激光切削系统和激光切削方法
US10195690B2 (en) 2011-09-21 2019-02-05 Align Technology, Inc. Laser cutting
US11534861B2 (en) 2011-09-21 2022-12-27 Align Technology, Inc. Laser cutting
EP3578292B1 (fr) 2011-09-21 2020-11-25 Align Technology, Inc. Procédé de découpe au laser
US9403238B2 (en) 2011-09-21 2016-08-02 Align Technology, Inc. Laser cutting
US10421152B2 (en) 2011-09-21 2019-09-24 Align Technology, Inc. Laser cutting
WO2013041936A1 (fr) * 2011-09-21 2013-03-28 Align Technology, Inc. Système de découpe au laser et procédé de découpe au laser
US10773337B2 (en) 2011-09-21 2020-09-15 Align Technology, Inc. Laser cutting
US10828719B2 (en) 2011-09-21 2020-11-10 Align Technology, Inc. Laser cutting
US9339890B2 (en) 2011-12-13 2016-05-17 Hypertherm, Inc. Optimization and control of beam quality for material processing
US11426259B2 (en) 2012-02-02 2022-08-30 Align Technology, Inc. Identifying forces on a tooth
US10893918B2 (en) 2012-03-01 2021-01-19 Align Technology, Inc. Determining a dental treatment difficulty
US10610332B2 (en) 2012-05-22 2020-04-07 Align Technology, Inc. Adjustment of tooth position in a virtual dental model
US11638629B2 (en) 2014-09-19 2023-05-02 Align Technology, Inc. Arch expanding appliance
US11744677B2 (en) 2014-09-19 2023-09-05 Align Technology, Inc. Arch adjustment appliance
US10537405B2 (en) 2014-11-13 2020-01-21 Align Technology, Inc. Dental appliance with cavity for an unerupted or erupting tooth
US10504386B2 (en) 2015-01-27 2019-12-10 Align Technology, Inc. Training method and system for oral-cavity-imaging-and-modeling equipment
US11554000B2 (en) 2015-11-12 2023-01-17 Align Technology, Inc. Dental attachment formation structure
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US11612455B2 (en) 2016-06-17 2023-03-28 Align Technology, Inc. Orthodontic appliance performance monitor
US10470847B2 (en) 2016-06-17 2019-11-12 Align Technology, Inc. Intraoral appliances with sensing
US10585958B2 (en) 2016-07-27 2020-03-10 Align Technology, Inc. Intraoral scanner with dental diagnostics capabilities
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US10595966B2 (en) 2016-11-04 2020-03-24 Align Technology, Inc. Methods and apparatuses for dental images
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US11273011B2 (en) 2016-12-02 2022-03-15 Align Technology, Inc. Palatal expanders and methods of expanding a palate
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US10779718B2 (en) 2017-02-13 2020-09-22 Align Technology, Inc. Cheek retractor and mobile device holder
US12090020B2 (en) 2017-03-27 2024-09-17 Align Technology, Inc. Apparatuses and methods assisting in dental therapies
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US11996181B2 (en) 2017-06-16 2024-05-28 Align Technology, Inc. Automatic detection of tooth type and eruption status
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US10517482B2 (en) 2017-07-27 2019-12-31 Align Technology, Inc. Optical coherence tomography for orthodontic aligners
US11633268B2 (en) 2017-07-27 2023-04-25 Align Technology, Inc. Tooth shading, transparency and glazing
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US11116605B2 (en) 2017-08-15 2021-09-14 Align Technology, Inc. Buccal corridor assessment and computation
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US12171575B2 (en) 2017-10-04 2024-12-24 Align Technology, Inc. Intraoral systems and methods for sampling soft-tissue
US10813720B2 (en) 2017-10-05 2020-10-27 Align Technology, Inc. Interproximal reduction templates
US11534268B2 (en) 2017-10-27 2022-12-27 Align Technology, Inc. Alternative bite adjustment structures
US11576752B2 (en) 2017-10-31 2023-02-14 Align Technology, Inc. Dental appliance having selective occlusal loading and controlled intercuspation
US11096763B2 (en) 2017-11-01 2021-08-24 Align Technology, Inc. Automatic treatment planning
US11534974B2 (en) 2017-11-17 2022-12-27 Align Technology, Inc. Customized fabrication of orthodontic retainers based on patient anatomy
US11219506B2 (en) 2017-11-30 2022-01-11 Align Technology, Inc. Sensors for monitoring oral appliances
US11432908B2 (en) 2017-12-15 2022-09-06 Align Technology, Inc. Closed loop adaptive orthodontic treatment methods and apparatuses
US10980613B2 (en) 2017-12-29 2021-04-20 Align Technology, Inc. Augmented reality enhancements for dental practitioners
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