US 12,390,891 B2
Comprehensive quantitative evaluation method and system for welding usability of welding consumables
Yinglong Jiang, Harbin (CN); Xiao Guo, Harbin (CN); Chao Wei, Harbin (CN); Kai Xu, Harbin (CN); Ying Han, Harbin (CN); Yujun Xu, Harbin (CN); Xiaochun Lv, Harbin (CN); Zijia Yang, Harbin (CN); Haoquan Yang, Harbin (CN); Bei Song, Harbin (CN); and Xiaomei Sun, Harbin (CN)
Assigned to HARBIN WELDING INSTITUTE LIMITED COMPANY, Heilongjiang (CN)
Appl. No. 18/020,334
Filed by HARBIN WELDING INSTITUTE LIMITED COMPANY, Heilongjiang (CN)
PCT Filed Aug. 23, 2022, PCT No. PCT/CN2022/114261
§ 371(c)(1), (2) Date Feb. 8, 2023,
PCT Pub. No. WO2024/007425, PCT Pub. Date Jan. 11, 2024.
Claims priority of application No. 202210815253 (CN), filed on Jul. 8, 2022.
Prior Publication US 2025/0128359 A1, Apr. 24, 2025
Int. Cl. B23K 31/12 (2006.01); G06N 7/02 (2006.01)
CPC B23K 31/125 (2013.01) [G06N 7/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A comprehensive quantitative evaluation method for welding usability of welding consumables, comprising:
obtaining welding data of target welding consumables, wherein the welding data comprises an eccentricity, coating strength, a current, a voltage, a length of broken arc, a sleeve length, a penetration depth, a penetration width, welding reinforcement, a contact angle, an inflection point, a range, a slag detachability rate, a spatter rate, soot, a melting coefficient, re-strikeability, a main color, and an area ratio;
calculating metric values of the welding data corresponding to the target welding consumables, wherein the metric values comprise a mean and a variance;
establishing a hierarchical structure model, wherein the hierarchical structure model comprises a first level, a second level, a third level, and a fourth level from a top level to a bottom level; indicators of the first level comprise external quality, welding process quality, and weld bead molding quality; the second level comprises related indicators of the first level, and indicators of the second level comprise at least the eccentricity, the coating strength, arc stability, the spatter rate, the soot, the melting coefficient, the re-strikeability, the length of broken arc, the sleeve length, a weld bead size, straightness, the slag detachability rate, and a weld bead color; the third level comprises related indicators of the second level, and indicators of the third level comprise at least metric values of the eccentricity, the coating strength, the length of broken arc, the sleeve length, the slag detachability rate, the current, the voltage, the penetration depth, the penetration width, the welding reinforcement, the contact angle, the inflection point, the range, the spatter rate, the soot, the melting coefficient, the re-strikeability, the main color, and the area ratio; and the fourth level comprises related indicators of the third level, and indicators of the fourth level comprise at least the metric values of the current, the voltage, the penetration depth, the penetration width, the welding reinforcement, the contact angle, the inflection point, the range, the main color, and the area ratio;
establishing a priority relationship matrix of each level in the hierarchical structure model and calculating a weight set of each level according to the priority relationship matrix, wherein the priority relationship matrix is established according to importance of indicators in a corresponding level, and the weight set is determined by weight values of all of the indicators in the corresponding level;
determining a corresponding membership function according to indicator data of the bottom level of welding usability of each of the target welding consumables, wherein the indicator data of the bottom level is the metric value of the welding data corresponding to the target welding consumables; and
determining quantitative evaluation indicators of the usability of the target welding consumables using the weight set and a comment set calculated by the membership function according to the hierarchical structure model.