NDLI: Development of Optimum Welding Heat Input Device Based on Welding Frequency and Spark Detection

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Eun, Sung-Soo Cho, Min-Hyun Kim, Ki-Hong Lee, Hyun-Seung
Copyright Year	2012
Abstract	According to the previous researches, the welding frequency increases as the load impedance decreases when the narrow gap shorts out during ERW welding process. The proper welding frequency is theoretically calculated and also measured for OCTG pipe manufacturing. Also, to assure the quality of ERW tube, the spark detection device developed. According to signals from the spark detection device, there are two types of sparks found as a single-shot spark and sustainable spark. The formation of single-shot spark is too short to recognize the existence of spark with operator’s naked eyes during ERW process. Thus, the paint spraying system was used to mark the sparking location for screening at the inspection unit. Therefore, spark detecting devices (bad signal detection) are used to increase the productivity of products and improve its quality. In addition, the database server system developed according to the accumulated data can provide the cost savings and the creation of new demands.
Sponsorship	International Petroleum Technology Institute Pipeline Division
Starting Page	371
Ending Page	378
Page Count	8
File Format	PDF
ISBN	9780791845141
DOI	10.1115/IPC2012-90403
Volume Number	Volume 3: Materials and Joining
Conference Proceedings	2012 9th International Pipeline Conference
Language	English
Publisher Date	2012-09-24
Publisher Place	Calgary, Alberta, Canada
Access Restriction	Subscribed
Subject Keyword	Heat Databases Welding Sustainability Spraying (coating processes) Inspection Signals Manufacturing Plasma spraying Oil field pipes Pipes Stress
Content Type	Text
Resource Type	Article

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