2011年2月27日 · I was asking for advice on applying that technique to the C-channel on my Ford Expedition. I heard "cut the bottom of the C-channel, jack it up pretty straight, then weld and fishplate." I don't know if that means fishplate the bottom of the C-channel, or the wider part, and how large it should be.

I am under the impression that it helps to prevent cracking by having the weld terminate out of line with the main weld. Like in the pictures in the link, the fillet weld runs past the end of the fishplate then curls away from the line of the weld. I don't know if cracking is …

2010年3月31日 · On larger booms you will not see my fishplate as I put the plate inside the boom, If it means cutting the crack out to fit the plate then so be it. Then I use the plug welding techique. Again fishplating booms kills resale. Only time this gets tricky is excavators tend to have ribs inside the booms.

"Fishplate" technically refers to a plate that is tapered on the ends, either angled or rounded, looks like a fish (without the tail), to reduce the stresses, provide a little flexibility, and reduce the possibility of a crack starting right at the end of the plate. See picture. The "super K" I was using yesterday had a ductile iron boom.

2010年4月23日 · You can see exactly why the boom failed. The add-on cylinder anchor plate look like it was welded right across the top and that little fishplate design is not really properly design and welded. Good luck with the project. I love doing this kind of job. Keep posting the progress.

2024年1月8日 · To minimize the high stress area, after welding up the crack, I covered the slot with a fish plate. I also added a fish plate to the left side of the ramp as well. I figured that without the fishplate the other side would also eventually fail as well. 4. Fish plate added Here are two pictures of the pin installed in the ramp. 5. Pin installed 1

2008年6月16日 · Got a project coming up ,customer called has a 320 cat trac-hoe with a cracked boom. Never welded on a boom, thinking inline of beveling the crack out and lo-hi it back together, then fishplate over the weld ,maybe 6 inches each side of the crack?Ithink it is cracked on three sides the way i understand,have not actually seen it yet.Anyone out there run in to this situation?

2015年5月6日 · A place to talk about how-to, techniques, troubleshooting, welding processes, welders, plasma cutters or other metalworking tools.

Along the same lines, there's a difference in "schools of thought" as to how to weld out a fishplate. Some feel that the shape of the fishplate itself is enough to distribute the forces, whereas some feel that the addition of stringer's or tailing beads gives …

2013年7月23日 · Then cover the new weld with a fishplate (google fishplate to learn about it) and weld the fish plate with 7018. Last edited by snoeproe ; 07-25-2013, 10:50 PM . Lincoln Idealarc 250