Energy beam deflection speed verification
First Claim
1. A method for verifying a deflection speed of an energy beam spot, said method comprising the steps of:
- generating, via an energy beam source, an energy beam spot;
generating, via one or more computer processors associated with a control unit, a predetermined pattern on a work table with said energy beam spot while deflecting said energy beam spot with a first deflection speed;
detecting, via said one or more computer processors associated with said control unit, first positions of said energy beam spot on said work table created with said first deflection speed;
generating, via said one or more computer processors associated with said control unit, said predetermined pattern on a work table with said energy beam spot while deflecting said energy beam spot with a second deflection speed;
detecting, via said one or more computer processors associated with said control unit, second positions of said energy beam spot on said work table created with said second deflection speed; and
comparing, via said one or more computer processors associated with said control unit, said first and second positions,wherein;
said deflection speed is verified and building of a three-dimensional article layer-wise may proceed if each one of said first positions are deviating less than a predetermined distance from corresponding ones of said second positions; and
said building of said three-dimensional article layer-wise is prevented and a warning signal is generated and transmitted, via said one or more computer processors associated with said control unit, if any one of said first and second positions is deviating more than said predetermined distance.
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Accused Products
Abstract
A method for verifying a deflection speed of an energy beam spot, the method comprising the steps of: providing a predetermined pattern on a work table with the energy beam spot while deflecting the energy beam spot with a first deflection speed, detecting first positions of the energy beam spot on the work table created with the first deflection speed, providing the predetermined pattern on a work table with the energy beam spot while deflecting the energy beam spot with a second deflection speed, detecting second positions of the energy beam spot on the work table created with the second deflection speed, comparing the first and second positions, wherein the deflection speed is verified if each one of the first positions are deviating less than a predetermined distance from corresponding second positions.
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Citations
21 Claims
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1. A method for verifying a deflection speed of an energy beam spot, said method comprising the steps of:
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generating, via an energy beam source, an energy beam spot; generating, via one or more computer processors associated with a control unit, a predetermined pattern on a work table with said energy beam spot while deflecting said energy beam spot with a first deflection speed; detecting, via said one or more computer processors associated with said control unit, first positions of said energy beam spot on said work table created with said first deflection speed; generating, via said one or more computer processors associated with said control unit, said predetermined pattern on a work table with said energy beam spot while deflecting said energy beam spot with a second deflection speed; detecting, via said one or more computer processors associated with said control unit, second positions of said energy beam spot on said work table created with said second deflection speed; and comparing, via said one or more computer processors associated with said control unit, said first and second positions, wherein; said deflection speed is verified and building of a three-dimensional article layer-wise may proceed if each one of said first positions are deviating less than a predetermined distance from corresponding ones of said second positions; and said building of said three-dimensional article layer-wise is prevented and a warning signal is generated and transmitted, via said one or more computer processors associated with said control unit, if any one of said first and second positions is deviating more than said predetermined distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An additive manufacturing apparatus for verifying a deflection speed of an energy beam spot, said apparatus comprising:
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an energy beam source configured to generate an energy beam spot; and a control unit configured for; generating a predetermined pattern on a work table with said energy beam spot while deflecting said energy beam spot with a first deflection speed; detecting first positions of said energy beam spot on said work table created with said first deflection speed; generating said predetermined pattern on a work table with said energy beam spot while deflecting said energy beam spot with a second deflection speed; detecting second positions of said energy beam spot on said work table created with said second deflection speed; and comparing said first and second positions, wherein said deflection speed is verified if each one of said first positions are deviating less than a predetermined distance from corresponding ones of said second positions. - View Dependent Claims (16, 17, 18)
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19. A non-transitory program element configured and arranged when executed on a computer to implement a method for verifying a deflection speed of an energy beam spot, said method comprising the steps of:
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generating a predetermined pattern on a work table with said energy beam spot while deflecting said energy beam spot with a first deflection speed; detecting first positions of said energy beam spot on said work table created with said first deflection speed; generating said predetermined pattern on a work table with said energy beam spot while deflecting said energy beam spot with a second deflection speed; detecting second positions of said energy beam spot on said work table created with said second deflection speed; and comparing said first and second positions, wherein; said deflection speed is verified and building of a three-dimensional article layer-wise may proceed if each one of said first positions are deviating less than a predetermined distance from corresponding ones of said second positions; and said building of said three-dimensional article layer-wise is prevented and a warning signal is generated and transmitted, via said one or more computer processors associated with said control unit, if any one of said first and second positions is deviating more than said predetermined distance. - View Dependent Claims (20)
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21. A non-transitory computer program product comprising at least one non-transitory computer-readable storage medium having computer-readable program code portions embodied therein, the computer-readable program code portions comprising:
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an executable portion configured for generating a predetermined pattern on a work table with said energy beam spot while deflecting said energy beam spot with a first deflection speed; an executable portion configured for detecting first positions of said energy beam spot on said work table created with said first deflection speed; an executable portion configured for generating said predetermined pattern on a work table with said energy beam spot while deflecting said energy beam spot with a second deflection speed; an executable portion configured for detecting second positions of said energy beam spot on said work table created with said second deflection speed; and an executable portion configured for comparing said first and second positions, wherein said deflection speed is verified and building of a three-dimensional article layer-wise may proceed if each one of said first positions are deviating less than a predetermined distance from corresponding ones of said second positions, and wherein said building of said three-dimensional article layer-wise is prevented and a warning signal is generated and transmitted, via said one or more computer processors associated with said control unit, if any one of said first and second positions is deviating more than said predetermined distance.
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Specification