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เนื้อหาย่อ : INTRODUCTION ion of NEW LESSONS IN ARC WELDING is the 4th revision of a g from an enlargement of the lessons used in the Lincoln Arc Weld This school has been in ope ion gathered from the sta Arc Welding School, weld seld, , welding , feld engineers, , and the comprehensive engi- I research facilities of The Lincoln Eleetric Co. ing has progressed tremendously in the past 10 years. New electrodes, nd proce cesses have been developed. This book presents concisely the ical information on the practice of arc welding. is divided into three areas. Lessons contain the basic necessa ome an all-around weldor. Lessons to learn the rranged according to their probable need and degree of dificulty. y to perform each job should be learned before attempting the next. n lessons are presented as they are needed to adequately understand equipment or mater rials encou untered in the welding jobs. .1 to 6.4 con ormation and operating procedures on specifc tric Company. These ntative of machines and materials enco ne or trade mark of The Lincoln Electric Com- ountered by the weldor in his orld over. r guarantce of the highest quality in machine, accessory and electrode. nufacturing ding Application Supplement in Section VII contains information and data for minimizing we ntary information to help and more detailed technical intormation on the field of arc welding lication may 1 be obtained from the latest edition of the "Procedure of Arc Welding Design and Practice" or any of the specialized books d in Part 76 of Section ESSONS IN ARC WELDING will be useful to anyone engaged in g industry. ent or beginning weldor will find stcp -by-step procedures for perform- welding operations, a as well as n on welding equipment, er demonstratio erienced weldor may refresh his memor sry on technical phases of the ld, pipe and alloy welding, or thosc seldom- -encountered jobs and ding foreman or job shop opefator will find that new elcctrodes and ave been developed that will do special jobs as well as run-of-the-mill , faster and at reduced cost. igner or draftsman will hind information on welding symbols, types welding design and electrode specifications to aid in planning and obs using we elded fabrication.