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Related Manuals for BOC Smootharc TIG185 AC/DC
Summary of Contents for BOC Smootharc TIG185 AC/DC
- Page 1 Smootharc TIG 185 AC/DC Operating Manual...
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Page 2: Welcome To A Better Way Of Welding
This document has been prepared by BOC Limited ABN 95 000 029 729 (‘BOC’), as general information and does not contain and is not to be taken as containing any specific recommendation. The document has been prepared in good faith... -
Page 3: Table Of Contents
BOC Smootharc TIG 185 AC/DC Operating Manual 1.0 Recommended safety guidelines and precautions Health hazard information Contents. Personal protection Electrical shock User responsibility 2.0 Gas tungsten arc welding (GTAW/TIG) Introduction Process Process variables Shielding gas selection Welding wire selection Non consumable tungstens... -
Page 4: Recommended Safety Guidelines And Precautions
BOC Smootharc TIG 185 AC/DC Operating Manual 1.0 Recommended safety guidelines and precautions Diagram and safety explanation Electrical safety alert Welding electrode causing electric shock Fumes and gases coming from welding process Some safety precautions BOC recommends are as follows: Welding arc rays •... -
Page 5: Health Hazard Information
BOC Smootharc TIG 185 AC/DC Operating Manual Health hazard information • Fumes from the welding of some metals could have an adverse effect on your health. Don’t breathe them in. If you are welding on material The actual process of welding is one that can cause a variety of hazards. - Page 6 Approved leak away from cylinders and valves detection fluid, can be obtained from a BOC Gas & Gear centre. Never use force when opening or closing valves When finished with the cylinder, close the cylinder valve by hand Don’t repaint or disguise markings and damage.
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Page 7: Electrical Shock
BOC Smootharc TIG 185 AC/DC Operating Manual Electrical shock BOC stock a huge range of personal protective equipment. This combined with BOC’s extensive Gas and Gear network ensures fast, reliable service • Never touch ‘live’ electrical parts throughout the South Pacific. -
Page 8: Gas Tungsten Arc Welding (Gtaw/Tig)
BOC Smootharc TIG 185 AC/DC Operating Manual 2.0 Gas tungsten arc welding (GTAW/TIG) Schematic of the TIG welding process Collet Shielding gas Tungsten electrode TIG filler rod Weld pool Workpiece Introduction The Tungsten Inert Gas, or TIG process, uses the heat generated by an... -
Page 9: Process Variables
BOC Smootharc TIG 185 AC/DC Operating Manual 2.3 Process variables Process variable Explanation Usage DCEN Narrow bead, When direct-current electrode-negative (straight polarity) For a given diameter of tungsten electrode, higher deep penetration is used: amperage can be used with straight polarity. Straight polarity is used mainly for welding: •... -
Page 10: Shielding Gas Selection
BOC Smootharc TIG 185 AC/DC Operating Manual Shielding gas selection 2.5 Welding wire selection The following table includes the recommended welding consumable for Material Shielding gas Benefits the most commonly welded materials. Aluminium Alloys Argon Used with high frequency AC... -
Page 11: Non Consumable Tungstens
BOC Smootharc TIG 185 AC/DC Operating Manual 2.6 Non consumable tungstens Tungsten Electrode Selector Chart Welding Thickness range Desired results current Electrode type Shielding gas Tungsten performance characteristics Aluminium alloys and Magnesium alloys General purpose ACHF Pure Argon Balls easily. Low cost. Tends to spit at higher currents. Used for non- (EW-P) critical welds only. -
Page 12: Welding Techniques
BOC Smootharc TIG 185 AC/DC Operating Manual Welding techniques 2.8 Torch movement during welding TIG Welding techniques Tungsten Without Filler Rod Tungsten With Filler Rod Welding direction Welding Vertical 75° direction Welding Rod 60–75° Form pool Form pool 75° Shield gas Nozzle 15–30°... - Page 13 BOC Smootharc TIG 185 AC/DC Operating Manual Tungsten electrode tip shapes and current ranges Tungsten tip preparation Thoriated, ceriated, and lanthanated tungsten electrodes do not ball DCSP (EN) or DCRP (EP) ACHP General Purpose as readily as pure or zirconiated tungsten electrodes, and as such are typically used for DCSP welding.
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Page 14: Positioning Torch Tungsten For Various Weld Joints
90° BOC Smootharc TIG 185 AC/DC Operating Manual 90° 70° 90° 70° 90° 20° 70° 90° 20° 20° 20° 20° 20° 20° 20° 75° 10° 75° 20° 75° 10° 15° 75° 15° 10° 15° 10° 15° 10° 70° 10° 90°... -
Page 15: Joint Preparation
BOC Smootharc TIG 185 AC/DC Operating Manual 2.10 Joint preparation 10° 10° 10° 6-20 6-20 6-20 10° 10° 10° 1.5-3 6-20 0- S 1.5-3 1.5-3 6-20 6-20 0- S 0- S 10° 10° 10° 6-20 1.5-3 1.5-3 1.5-3 0- S... - Page 16 BOC Smootharc TIG 185 AC/DC Operating Manual Condition Result Long arc length Undercut Porosity Wide bead profile Loss of gas Acute angle coverage Oxides Unsymmetrical bead Angular profile mis-alignment Incomplete Mis-alignment penetration Filler rod removed from gas shield Oxides Oxides...
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Page 17: Tig Welding Of Materials
BOC Smootharc TIG 185 AC/DC Operating Manual 3.0 TIG welding of materials Application summary 3.2 C-Mn steel TIG welding may be used for welding carbon steel but because Material Type of current Polarity deposition rates are low, it is usually only used for welding sheet and thin... -
Page 18: Alloyed Steel
BOC Smootharc TIG 185 AC/DC Operating Manual 3.3 Alloyed steel Stainless steel TIG welding may be used for welding alloy steels but because deposition TIG is a high quality process ideally suited for welding of stainless steels, rates are low, it is usually only used for welding sheet and thin sections... -
Page 19: Aluminium
BOC Smootharc TIG 185 AC/DC Operating Manual 3.5 Aluminium Balanced squarewave TIG is a high quality process widely used for welding aluminium, The balance on squarewave machines can be adjusted to achieve particularly in section size up to about 6mm. The process may be the desired results. -
Page 20: Copper And Copper Alloys
BOC Smootharc TIG 185 AC/DC Operating Manual Copper and copper alloys Copper and copper alloy welding parameters Cleanliness is important when welding copper, and all dirt, grease, and Plate thickness (mm) other contaminants must be removed before welding. Copper alloys... -
Page 21: Package Contents
BOC Smootharc TIG 185 AC/DC Operating Manual 4.0 Package contents Front Connections of TIG 185 AC/DC Negative output terminal Gas-electricity system output terminal Torch/foot contol socket Positive output terminal Package Contents Power source Work return lead TIG torch MMA electrode holder and cable... -
Page 22: Smootharc Tig 185 Ac/Dc Installation
BOC Smootharc TIG 185 AC/DC Operating Manual 5.0 Smootharc TIG 185 AC/DC installation Installation for TIG setup Installation for TIG setup using foot control 5.2 Installation for TIG setup with WARNING optional foot control Before installing please ensure that all the power is turned off. Connect the work return lead to the machine. -
Page 23: Installation For Mma Process
BOC Smootharc TIG 185 AC/DC Operating Manual Installation for MMA process 5.3 Installation for MMA process 1 Connect the work return lead into the negative of the machine and fasten it clockwise. 2 Connect the electrode holder to the positive of the machine and fasten it clockwise tightly. -
Page 24: Control Panel
BOC Smootharc TIG 185 AC/DC Operating Manual 6.0 Control panel Control Panel of TIG 185 AC/DC Frequency switch MMA/TIG switch AC/DC switch 2T/4T switch Current meter Over-heat protection indicator VRD indicator Over-current protection indicator Foot control indicator AC balance adjustment... -
Page 25: Smootharc Tig 185 Ac/Dc Operation
BOC Smootharc TIG 185 AC/DC Operating Manual 7.0 Smootharc TIG 185 AC/DC operation WARNING discharge in the welding machine will be audible and the shielding gas will flow Do not connect or disconnect the machine cables whilst welding as this may cause serious harm to yourself and/or the machine. -
Page 26: Troubleshooting And Fault Finding
BOC Smootharc TIG 185 AC/DC Operating Manual 8.0 Troubleshooting and fault finding Excessive electrode consumption Cause Solution Inadequate gas flow Increase gas flow Inadequate post gas flow Increase post flow time to 1 sec per 10 amps Improper size electrode for current required... - Page 27 BOC Smootharc TIG 185 AC/DC Operating Manual Cracking in Welds Cause Solution Hot cracking in heavy sections or welding on metals prone Increase weld bead cross-section size. Change weld bead contour for e.g. concave to flat or to hot cracking...
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Page 28: Periodic Maintenance
BOC Smootharc TIG 185 AC/DC Operating Manual 9.0 Periodic maintenance WARNING Only authorised electricians should carry out repairs and internal servicing Modification of the 15A primary input plug or fitment of a lower rated primary input plug will render the warranty null and void. -
Page 29: Technical Specifications
BOC Smootharc TIG 185 AC/DC Operating Manual 10.0 Technical specifications Specifications Part No. BOC185ACDC/FC Power voltage AC Single phase 240 V ±15 % Frequency 50/60 Hz Rated input current (Imax) 22.0 A 24.5 A Output current range 10 to 180 A... -
Page 30: Warranty Information
Warranty repairs may only be carried out by approved BOC service damage due to or resulting from natural wear and tear, non-compliance providers. Please contact your local BOC Gas & Gear for a directory of BOC with operating and maintenance instructions, connection to incorrect approved service providers in your area. - Page 32 © BOC Limited 2015. BOC is a trading name of BOC Limited, a Member of The Linde Group. Reproduction without permission is strictly prohibited. Details given in this document are believed to be correct at the time of printing. Whilst proper care has been taken in the preparation, no liability for injury or damage resulting from its improper use can be accepted.
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