Welcome to a better way of welding
Congratulations on purchasing a Smootharc TIG 185 DC
welding machine. The products in BOC’s TIG range perform
with reliability and have the backing of BOC’s national
service network.
This operating manual provides the basic knowledge
required for TIG welding, as well as highlighting important
areas of how to operate the Smootharc TIG 185 DC machine.
With normal use and by following these recommended steps,
your Smootharc TIG 185 DC machine can provide you with
years of trouble free service. BOC equipment and technical
support is available through our national BOC Customer
Service Centre or contact your local Gas & Gear outlet.
Important Notice
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 and is professional opinion only. Information in this document has been derived from third parties, and
though BOC believes it to be reliable as at the time of printing, BOC makes no representation or warranty as to the accuracy, reliability or completeness of information in
this document and does not assume any responsibility for updating any information or correcting any error or omission which may become apparent after the document has
been issued. Neither BOC nor any of its agents has independently verified the accuracy of the information contained in this document. The information in this document is
commercial in confidence and is not to be reproduced. The recipient acknowledges and agrees that it must make its own independent investigation and should consider
seeking appropriate professional recommendation in reviewing and evaluating the information. This document does not take into account the particular circumstances
of the recipient and the recipient should not rely on this document in making any decisions, including but not limited to business, safety or other operations decisions.
Except insofar as liability under any statute cannot be excluded, BOC and its affiliates, directors, employees, contractors and consultants do not accept any liability (whether
arising in contract, tort or otherwise) for any error or omission in this document or for any resulting loss or damage (whether direct, indirect, consequential or otherwise)
suffered by the recipient of this document or any other person relying on the information contained herein. The recipient agrees that it shall not seek to sue or hold BOC or
their respective agents liable in any such respect for the provision of this document or any other information.
Contents
1.0 Recommended Safety Precautions
4
1.1 Health hazard information
4
1.2 Personal protection
4
1.3 Electrical shock
6
1.4 User responsibility
6
2.0 Gas tungsten arc welding (GTAW/TIG)
7
2.1 Introduction
7
2.2 Process
7
2.3 Process variables
8
2.4 Shielding gas selection
9
2.5 Welding wire selection
10
2.6 Tungsten electrode selection
11
2.7 Welding techniques
13
2.8 Torch movement during welding
13
2.9 Positioning torch tungsten for various weld joints
13
2.10 Joint preparation
14
3.0 TIG Welding of Materials
16
3.1 Application summary
16
3.2 C-Mn steel
16
3.3 Alloyed steel
17
3.4 Stainless steel
18
3.5 Copper and copper alloys
19
4.0 Connecting your Smootharc TIG 185 DC machine
20
4.1 Power
20
4.2 Shielding gas
20
4.3 TIG Torch connection
20
4.4 MMA Operation
20
4.5 TIG Welding operation
20
5.0 Technical specifications
23
6.0 Troubleshooting guide
24
7.0 Warranty information
26
7.1 Terms of warranty
26
7.2 Limitations on warranty
26
7.3 Warranty repairs
26
8.0 Recommended safety guidelines
27
BOC Smootharc TIG 185 Operating Manual
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BOC Smootharc TIG 185 Operating Manual