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Furnace brazing is nor relevant to this subject. If you walk into any small engineering shop in either Australia or probably America and ask for 'BRAZING' you will get what Rohan calls bronze welding. If you ask for 'bronze welding' they would probably think you are gay and increase the fee. The main problem with brazing the Rickman frame to fix a crack will be the nickel plating. I don't believe you can simply braze over it. You would probably need to mask off from the area around the crack and shot blast the area so you can braze it without making a mess. If you are making a brazed joint on the Rickman frame there is a difficulty getting the fillet big enough. Most of the fillet welds on push-bikes are only about 1mm in width. On a Rickman or a Seeley frame the fillets are about 8mm wide. The bronze welding rod and the flux determine that. Seeley frames were all brazed with tobin bronze. The last frame I was involved in building we used flux cored nickel bronze which gave reasonable looking joints.

<blockquote data-quote="acotrel" data-source="post: 323969" data-attributes="member: 4295"><p>Furnace brazing is nor relevant to this subject.&nbsp; If you walk into any small engineering shop in either Australia or probably America and ask for &#039;BRAZING&#039; you will get what Rohan calls bronze welding. If you ask for &#039;bronze welding&#039; they would probably think you are gay and increase the fee. The main problem with brazing the Rickman frame to fix a crack will be the nickel plating.&nbsp; I don&#039;t believe you can simply braze over it.&nbsp; You would probably need to mask off from the area around the crack and shot blast the area so you can braze it without making a mess.&nbsp; If you are making a brazed joint on the Rickman frame there is a difficulty getting the fillet big enough.&nbsp; Most of the fillet welds on push-bikes are only about 1mm in width.&nbsp; On a Rickman or a Seeley frame the fillets are about 8mm wide.&nbsp; The bronze welding rod and the flux determine that.&nbsp; Seeley frames were all brazed with tobin bronze.&nbsp; The last frame I was involved in building we used flux cored nickel bronze which gave reasonable looking joints.</p></blockquote><p></p>

[QUOTE="acotrel, post: 323969, member: 4295"] Furnace brazing is nor relevant to this subject. If you walk into any small engineering shop in either Australia or probably America and ask for 'BRAZING' you will get what Rohan calls bronze welding. If you ask for 'bronze welding' they would probably think you are gay and increase the fee. The main problem with brazing the Rickman frame to fix a crack will be the nickel plating. I don't believe you can simply braze over it. You would probably need to mask off from the area around the crack and shot blast the area so you can braze it without making a mess. If you are making a brazed joint on the Rickman frame there is a difficulty getting the fillet big enough. Most of the fillet welds on push-bikes are only about 1mm in width. On a Rickman or a Seeley frame the fillets are about 8mm wide. The bronze welding rod and the flux determine that. Seeley frames were all brazed with tobin bronze. The last frame I was involved in building we used flux cored nickel bronze which gave reasonable looking joints. [/QUOTE]