Pengelasan SMAW
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Transcript of Pengelasan SMAW
Antoni
Garnis Nurfadila sari
LNG Academy
2014
Introduction
Tools
Basic Method
Parameters
SMAW Machine and Electrodes
Advantages and Limitations
Application
SMAW is an arc welding process that uses a consumable
electrode to initiate the arc and provide the filler
material.
Weld Helmet Goggle Working clothes Gloves Safety shoes Mask
Electric currents
Welding voltage
Welding speed
Electrodes diameter
Source
DC
DCSP
DCRP
AC
Cable length is not
affected
Voltage drop is not
sensitive
For specific electrode
Pole is not exchangable
Difficult arc starting
AWS (American Welding Society)
2,3, atau 4 digit pertama:
2 digit : kuat tarik hasil lasan <100.000 psi
3 atau 4 digit : kuat tarik hasil lasan > 100.000 psi
Digit selanjutnya :
Angka 1 : untuk segala posisi pengelasan
Angka 2 : las datar atau horizontal
Angka 3 : pengelasan datar
Digit yang terakhir menunjukan jenis dari campuran kimia
dari lapisan elektrode
High quality weld with low
cost.
Easy to practice and simple
Can be used anywhere
Can weld various types of
material and any thickness
Easy to set up
Can be used to weld all
positions
The electrodes available in
many sizes and diameters
Consumes bigger electric
current
Dirty work finish
Easy to oxidated
Electrode diameter depends
on plate and welding
position
Limited with electrode
length
Maintenance and repair industries
Pipelines
Naval Industry
Construction of steel structures
Locomotive
Automotive
Offshore platforms
Weld carbon steel, low and high alloy steel,
stainless steels, cast iron, aluminum, nickel and
cooper alloys
THANKYOU
http://akmalchaka.blogspot.com/2010/04/smaw-shielded-metal-arc-
welding.html
http://www.ewf.be