Method for controlling weld energy
First Claim
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1. A method for controlling weld energy used in a welding process comprising the steps of:
- establishing an energy profile used over the period of the weld cycle to perform the welding process;
monitoring the expulsion rate during the welding process;
modifying the established energy profile based on the expulsion rate; and
using the modified energy profile to perform the welding process;
creating a target factored energy profile used to calculate a total factored energy needed to produce the weld; and
partitioning the total factored energy into a first part and a second part.
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Abstract
A method for controlling weld energy used in a welding process. The method includes establishing a weld energy profile having a total weld energy used over the period of the weld cycle. During the welding process, the expulsion rate is monitored and used to modify the weld energy. Based on the expulsion rate occurring during the welding process, the total weld energy can be shifted between various phases or cycles. In addition, the overall amount of or total weld energy can be increased and decreased.
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Citations
17 Claims
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1. A method for controlling weld energy used in a welding process comprising the steps of:
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establishing an energy profile used over the period of the weld cycle to perform the welding process; monitoring the expulsion rate during the welding process; modifying the established energy profile based on the expulsion rate; and using the modified energy profile to perform the welding process; creating a target factored energy profile used to calculate a total factored energy needed to produce the weld; and partitioning the total factored energy into a first part and a second part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for controlling weld energy used to create a weld during a welding process comprising:
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establishing a total factored energy needed to produce a satisfactory weld and providing an energy profile based on the total factored energy; partitioning the total factored energy into a first part and a second part; performing a welding process and monitoring expulsion occurrence during the first part and the second part; adaptively changing the total factored energy based on the expulsion occurrence; and shifting the target factored energy between the first part and the second part. - View Dependent Claims (11, 12)
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13. A method for controlling weld energy used to create a weld during a welding process comprising:
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establishing a total factored energy needed to produce a satisfactory weld and providing an energy profile based on the total target factored energy; partitioning the total factored energy into a first part and a second part; performing a welding process and monitoring expulsion occurrence during the first part and the second part; inputting expulsion occurrence rates into a fuzzy logic controller with associated fuzzy inference rules defining total factored energy control actions depending on various combinations of expulsion occurrence rates; analyzing expulsion occurrence rates in accordance with the fuzzy inference rules to determine appropriate total factored energy control actions; generating total factored energy adjustment parameters defining adjustments to the total factored energy; and applying total factored energy adjustment parameters to adjust the total factored energy. - View Dependent Claims (14, 15, 16, 17)
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Specification