Top Tube / Head Tube Weld

Today I braved the snow and drove up to my shop to work on the Bring Gabe Back East Raffle bike. Its going to be to fixed gear bicycle for Jarret Shamlian’s (the raffle winner) girlfriend: Brianna Nichols. I welded the main triangle and began working on the fork. The welding went very smooth with my bread and butter tube set (Columbus Zona) and super tight miters. I didn’t have access to the Brigeport milling machine I use to miter the chainstays, so after welding I began work on her steel fork. This will be the fourth fork I have built. When you TIG weld your frames, and can join the tubes at any angle, you can easily design the front of the bicycle around an off the shelf carbon fork. Many people prefer the ride of a carbon fork, and they are a lot lighter than their steel counterparts. The first step to build a steel fork from scratch is silver brazing the steer tube into the fork crown. You can’t rush this, and have to take your time preheating the fork crown meticulously. It’s easily to burn away all the flux and still not have complete penetration into the joint; the best way to get a solid joint is making sure you take your time to heat the crown evenly and slowly. I finished the afternoon brazing the fork droupout onto the fork blades. This week I will finish this frame and take a field trip down to Mike Zanconato’s shop to use his fork jig and braze the fork together. This one is going together well and will be on display at NAHBS. Jarret, Brianna and I are working with a prominent NYC tattoo artist to have some original art drawn on this frame…should be hot!

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2 Responses to Top Tube / Head Tube Weld

  1. nooneline says:

    lovely weld. i’m enamored with the way that the heated area rainbows around the weld like an oil spill. cant wait to see pictures of the complete frame!

  2. Welder Parts says:

    After the discovery of the electric arc in 1800 by Humphry Davy there was little development in electrical welding until Nikolay Benardos developed carbon arc welding, obtaining patents in the 1880s showing a rudimentary electrode holder.

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