How much overlap should there be on a good lap joint?
As a general rule, design the lap joint to be three times as long as the thickness of the thinner joint member. Longer laps may waste brazing alloy filler metal (and money) that doesn’t translate into a stronger joint. A shorter lap will result in decreased joint strength. If you are unsure and brazed joint strength is critical, contact Bellman-Melcor and we can help you design a proper lap joint using a special formula that mathematically accounts for all factors.Back