Making a japanese chef's cutting tool starting from raw materials with many of the tecniques I have shown in previous videos like stabilizing wood and making liners from scratch.
The materials are:
2mm thick Nitro B Stainless steel for the blade, mild stainless steel for the guard and a stack of felt and paper liners, stabilized cork and stabilized elm wood for the handle.
With this build I wanted to try a half mirror half satin finish on the blade. I tought it would have looked cool but it looks a bit more like a not fully finished blade. This is a gift to my uncle by the way so I can always change my mind later and make it full mirror or (much easier) full satin. You never try, you never know!
Here are some of the videos where I go in more details about some of the tecniques used in this video:
Stabilizing wood: • Stabilizing Wood With ...
Homemade Liners: • Felt And Resin Liner /...
Stabilized Cork: • Cork Stabilization IKE...
Stainless steel: • Stainless Steel Heat T...
And here are some of the videos about the tools I used:
Vacuum pump and chamber used to stabilize: • DIY Vacuum Pump And Ch...
Hardening oven: • DIY Heat Treatment Oven
Tempering oven: • PID Controlled And Ins...
My lovely drill press: • ROSA Drill Press Resto...
Index of operation and materials:
0:04 Mark template with spray paint and small magnets
0:25 Rough cut on metal cutting band saw
1:01 Refine profile on 2x72 belt grinder
1:30 Make this transition nice and round with a die grinder
1:48 Surface prep for the texturing up to 120grit sandpaper
2:12 Taxture done with two ball peen hammers
2:40 Preparation for the heat treatment, see video linked above for more info
3:30 Plate quench
4:12 Tempering
4:30 Grind bevels, all done after heat treatment being carefull to not overheat
4:50 Finishing the blade
5:22 Buffing the bevels with a cotton wheel and polishing paste
5:50 Elm wood stock
6:12 Check moisture content before stabilizing, see video above for more info
6:55 Pulling vacuum! Again, see the dedicated video for more info
8:30 Black felt and peach coloerd cardboard liners, check the video above for more info
9:54 Leftover piece of stabilized cork, there is a video about this as well linked above
10:00 Hadnle stack glue up with slow setting epoxy resin
10:55 Drill hole for tang and dowel
11:07 Preparation of the stainless steel guard for drilling and grinding to fit the blade
11:50 Notch on the dowel cut and ground to fit the tang
12:20 Final glue up with slow setting epoxy resin
13:26 Grind off excess material with 2x27 grinder and a fresh 40grit belt
14:00 Hand finishing the handle up to 1000 grit sandpaper
14:30 Boiled linseed oil as finish
14:55 Stropping the edge with leather and fine polishing compound. This is ground to zero, no secondary bevel.
Thanks a lot for watching, I hope you liked the video!
Suggestions and comments are welcome.
Leave a like and share to anyone who might be interested!
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8 авг 2019
