Welding Productivity Indicators: A critical analysis.
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 5
Abstract
Welding is one of the main activities of the construction of process plants and one observes the use of several indicators in the monitoring of its productivity. In this article, the behavior of the welding productivity of ASTM A-36 steel are evaluated with the Cored Wire (FCAW) process using the E71T-1C/M electrode and two shielding gases: ArC-25 (75% Argon and 25% CO2) and ArC-40 (60% Argon and 40% CO2). The specimens were welded with procedures that met the requirements of AWS D1.1 [37] and the welding consumables used were approved in the qualification tests of AWS A5.36M / A5.36 (2012). In this evaluation, the following indicators were employed: Melt-off Rate, Deposition Rate, Operating Factor, Deposition Efficiency and Welding Productivity. In view of the productivity being a random process, the Monte Carlo Method was used with the software @RISK 7.5, for evaluation of its behavior. The results obtained evidenced that when the Melt-off Rate, Deposition Rate and Deposition Efficiency indicators are used, the welds produced with the gas ArC-25 present a higher productivity. However, when the Operating Factor and the Welding Productivity is used, the joints welded with gas ArC-40 present better results.
Authors and Affiliations
Miguel Luiz Ribeiro Ferreira, Marcos Müller Lobato, Cássia Andréa Ruotolo Morano
Keywords
Related Articles
- EP ID EP438504
- DOI 10.9790/1684-1505012232.
- Views 65
- Downloads 0
Behavior of R.C. Deep Beam with Web Openings Strengthened With Ferrocement Overlays
The main purpose of this study is to investigate the behavior of R.C deep beam with web openings retrofitted by ferrocement laminates. In order to achieve this objective, a total of fifteen simply-supported deep beams we...
Relative Performance of Red Mud over Red Soils as Construction Material
Natural soils are prominent material for construction activities. Red soils are widely distributed in north coastal districts of Andhra Pradesh, which are strong in dry conditions and compressed under saturated condition...
Stakeholder Knowledge of Sustainable Road Implementation In Buru Regency
Sustainable road development is an activity for the planning, implementation and use of environmentally friendly road construction products, efficient in resource use, low cost and with due consideration to the principle...
Effect of Outrigger Structural System on Highrise Structures, Subjected to Lateral Loads
There are several factors which have made it compulsory for our nation and the world to go for highrise structures and the skyscrapers. One of such factors is rapidly increment in population in urban areas. But it is a b...
Road Defects and Highway Maintenance
This paper summarizes the ongoing researches about the defects in Flexible and Rigid pavement and the maintenance in Flexible and Rigid pavements. In the past, lots of researchers have already studied the defects and pro...