The '47 UL Build (Current Project)

Feb 16, Today’s challenge is to rivet a new sprocket to the brake drum.

Had a fellow make the lower half of the jig from hardened steel and a flat piece of HRS(hot rolled steel), thinking that it should be nice and hard.

I made the upper punch from a piece of steel in the scrap box. I machined the pocket on the Mill with a ball nosed mill to get the rounded profile. Turns out it was harder than the rivets and did the job nicely, as the pictures show:

Finished product

Finished product

finished sprocket/drum, not too shabby, if I say so myself.

finished sprocket/drum, not too shabby, if I say so myself.

rivetjig1.jpg
rivetjig2.jpg
business end of handheld punch

business end of handheld punch

Punch in position…..

Punch in position…..

Let ‘er Rip, Notice 5 fingers, I wear Heavy gloves while driving a hammer and not just posing for the camera. Notice heavy steel plates under rivet set and overall jig. Heavy mass behind the set means the rivet gets the pounding instead of everyth…

Let ‘er Rip, Notice 5 fingers, I wear Heavy gloves while driving a hammer and not just posing for the camera. Notice heavy steel plates under rivet set and overall jig. Heavy mass behind the set means the rivet gets the pounding instead of everything dancing across my workbench.

Dick Linn