David Pacheco

Twin
  • location Rio De Janeiro, Rio de Janeiro, Brazil
  • Welding, Mechanical Engineering, Research and Development
Profile Snapshot
David is based out of Rio De Janeiro & has studied ME-Mechanical Engineering, M.Sc-Master of Science from Year 1975-1977 in ZHCET-Zakir Husain College Of Engineering And Technology, Aligarh Muslim University.
David Pacheco is Skilled in Welding, Mechanical Engineering, Research and Development and other talents.
About
Mechanical and Welding engineer, MSc; Materials and Metallurgical engineer; Failure Analysis Expertise; Heat Treatments; Training; industrial research and development. I perform engineering consultancy works through the internet even in real time (davidjuvenal@gmail.com) or using Whatsapp 55 24 993050689
Work Experience
Engineering Consulting
Several Companies
Part Time Jan-1982 To present (43 years 3 months)
Responsibilities
  • Industrial processes; Welding processes and procedures; Brazing; Heat treating of steel components; Autoclaves and Pressure vessels inspection; Failure analysis (several cases); Metallurgical quality of metals; Training and qualification of welders; Development of welding processes; Mechanical testing of components; Fatigue testing; Heat treatments of cutting tools; Maintenance techniques; Robotic Tig welding (washing-machine); Mig welding (aluminum transformers); Automatic SAW (gas bottles); Automatic Mag (gas bottle); Manual Mag (steel transformers); MMA (diesel tank); Repairing welding (several components); Resistance and seam welding (thin sheets); Brazing training and practices; Metallography; Scanning eletron microscopy; Automotive mechanics; Engines recovery (Diesel and Otto); Maitenance of heavy machines; Private researches
Achievements
  • My Copyrights (Brazil): welding; brazing; heat treating of steels; maintenance techniques; inspection techniques; failure mechanism SS AISI 316; brazing; failure mechanisms (brazing joints); private papers.
Inspection and maintenance of equipments
Petrobras
Full Time Nov-1978 To Dec-1982 (4 years 1 month)
Responsibilities
  • Maintenance on shore and offshore
Education
Master of Science, Mechanical Engineering
Zakir Husain College Of Engineering And TechnologyAligarh Muslim University
1975-1977 | Score 60%
Blogs & Portfolio
Blog
Restoration of Antique Sewing Machine
Restoration of old sewing machines requires talents and mechanic skills because several parts need to be reclaimed or manu- factured. This example represents the 12th ...
  • David Pacheco
  • 18 Feb, 2018
  • 14
  • 0
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Blog
Fatigue Tension Test at -196° C - Fatigue Specime...
Austenitic Stainless steel AISI 316; Frequency of 120 Hz; 30 million cycles; Stages I and II of brittle fracture; Stage III of the ductile fracture did not occur. In t...
  • David Pacheco
  • 26 Sep, 2017
  • 100
  • 0
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Blog
Mig Aluminum - Welder Qualification Test
Aluminum alloy. Mig welding parameters and procedures defined before the qualification test. After the test, weld beads without defects. Welder approved and qualified....
  • David Pacheco
  • 26 Sep, 2017
  • 103
  • 0
READ MORE
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Extra-Curricular Interests
  • Fotography; Sewing; Gardening; Writing; Reading; Backgammon (game); Cinema; Electrician; Hydraulics; Antiquities restoration; Sewing mechanic; Vehicles mechanic; Voluntary teaching
yKnown
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