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David Pacheco

Twin
  • 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.
My Story
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
Professional Path
Engineering Consulting
Several Companies
Part Time Jan-1982 To present (43 years 7 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
Qualifications
Master of Science, Mechanical Engineering
Zakir Husain College Of Engineering And TechnologyAligarh Muslim University
1975-1977 | Score 60%
My Work
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
  • 101
  • 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
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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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