ข้อมูลทรัพยากร

เนื้อหาย่อ : It has long been recognized that the skilled welder is not only competent in the manipulative skills of his trade, but must be equally competent in his ability to interpret the trade drawings which describe the work he must do. This instructional material, BLUEPRINT READING FOR WELDERS, has been developed to meet the specific needs of the welder in the area of drawing interpretation. Beyond the ability to interpret conventional trade drawings, the welder must also be thoroughly familiar with the use of welding symbols as standardized by the American Welding Society. These symbols are an integral part of the graphic language by which the engineer or designer communicates to the welder on the job. A com- plete section of this material recognizes the importance of these symbols and their proper use and interpretation. Acknowledgment is due and appreciation is expressed to the following indi- viduals and organizations for their contributions to the development of this material. To the American Welding Society for permission to use and adapt illustrations and technical data from their publication, Welding Symbols, AWS A2.1-58. To Hobart Brothers Company, Troy, Ohio and to Lincoln Electric Company, Cleveland, Ohio for supplying illustrative material and technical review of the content. To Joseph T. Ryerson and Son, Inc., Chicago, Ilinois, for permission to use data on structural steel sizes. To Lawrence Grady, draftsman, Simmons Machine Tool Company, Albany, New York, for the preparation of finished drawings,