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Hammerhead Smart Award

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Hammerhead Smart Award Report

The following report provides detailed evidence of the quality and strength of both conventional wet and dry fillet welds and those of wet and dry spot welds (Hammerhead (HH) system). The report is broken up into small sections so you can download the most relevant parts. We recommend you download the section (introduction, evaluation, welding criteria, conclusions and summary) first, as this will provide you with a fuller understanding as to how the trials were organised. After which, you can download information on the quality and strength data on fillet welds, (wet & dry) using our Barracuda Gold and Hammerhead electrodes and compare them to spot welds (wet & dry) using Hammerhead (HH) electrodes. The trials were conducted on clean, rusty and painted steel plates having a combined thickness of 16.0mm - 30.0mm and were welded in both good and nil visibility by both skilled and non-skilled welders. Welds were made as either a single spot welds on a standard test piece, or as two, three or four spot welds, per standard test piece. All material testing was conducted by Bodycote Materials Testing Services.

 

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Introduction, evaluation, welding criteria, conclusions and summary

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Single & multipass dry-fillet welds (A-C series) using Barracuda (8 & 10mm clean steel), includes tensile, macro & hardness reports

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Single & multipass wet-fillet welds (D-F series) using Barracuda (8 & 10mm clean steel), includes tensile, macro & hardness reports

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One spot dry-welds ('G' series) using HH (2 x 8mm clean steel), includes tensile, macro & hardness reports

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Two spot dry-welds ('H' series) using HH (2 x 8mm clean steel), includes tensile, macro & hardness reports

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Three spot dry-welds ('I' series) using HH (2 x 8mm clean steel), includes tensile, macro & hardness reports

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Four spot wet-welds ('J' series) using HH (2 x 8mm clean steel), includes tensile, macro & hardness reports

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Single & multipass wet-fillet welds ('L' series) using HH (8 & 10mm clean steel), includes tensile reports

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Three spot wet-welds ('M' series) using HH (16mm rusty steel), includes tensile, macro and hardness reports.el), includes tensile reports

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Three spot wet-welds ('N' series) using HH (16mm rusty/painted steel), includes tensile, macro and hardness reports.

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Three spot wet-welds ('O' series) using HH (20mm rusty steel), includes tensile, macro and hardness reports

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Three spot wet-welds ('P' series) using HH (16mm rusty steel), includes tensile, macro and hardness reports

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Three spot wet-welds ('Q' series) using HH (16mm rusty steel), includes tensile, macro and hardness reports

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One & two spot wet-welds ('R' series) using HH (16mm rusty steel), includes tensile, macro and hardness reports

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One, two & three spot wet-welds ('S' series) using HH (20mm rusty steel), includes tensile, macro and hardness reports

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One, two & three spot wet-welds ('T' series) using HH (24mm rusty steel), includes tensile, marco and hardness reports

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Two spot wet-welds ('V' series) using HH (30mm rusty steel), includes tensile reports

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One spot wet-weld ('W' series) using HH (30mm rusty steel), includes tensile, macro and hardness reports

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One spot wet-weld ('X' series) using HH (30mm rusty steel), includes tensile, marco and hardness reports

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Non-welder (Drew Maslin's) wet and dry spot welds (16mm clean steel), includes tensile, macro and hardness reports and testimonial

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Skilled welder (Ian Macklam) wet and dry spot welds (16 & 24mm clean steel), includes tensile, macro and hardness reports and testimonial

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Non-welder (John Sparrowe) wet spot welds (16mm clean steel), includes tensile reports and testimonial

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Appendix I Hammerhead electrode brochure

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Appendix II Barracuda Gold electrode brochure

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Appendix V Patent filling receipts