You have to bevel a blade leaving a thickness at around 1,5 mm . the blade was finshed now with 120 coarse paper . Now you have to draw the shape of the blade on a see-through sheet . on which you have to mark the hamon line Cut from the sheet the line of the hamon and use it for making both the side of the blade . The mentioned step is quite important in order to have symmetrical hamon line No we start : the right compactness Let it dry for at least 24 hours Now it's time to temper the blade ( I am using a gas forge ) . Heat the blade to the right temperature , then quench it in water for about 3-4 seconds , then immediately finish to quench it in oil
Pictures are scrap , here below the video Brush away satanite then in the oven for tempering Let the blade getting cold and then start removing the oxide layer with 60 grit belt and then continue polishing grit 60 120, then 240 up to 600 800 ,1000 soldering the guard After perfectly degreasing the blade , sink it for 4-5 mins in a moisture made up of 1 part of ferric chloride and 5 part of water Remove the oxyde left by the chloride washing the blade with soap and water Repeat this step three times ( chloride-washing) in order to let the chloride going deeper in the steel Now sink the blade in water mixed with baking soda to quit the effects of the chloride cover the blade with a lot of oil , pack it in paper and let it rest night time then I start to roughly polishing the blade with a cotton wheel and some green polishing paste . The blade before the bodyshop polishing paste After the polishing paste Blade is now finished
Then by hand wit kleenex and etilic alcohol Icontinue cleaning the blade , paying attention to use a clean piece of paer as soon as it becomes dirty ..... continue polishing with bodyshop paste and a wool cloth have a look at the different porosity of betwwen the harder part and the softer part of the blade
That's a great photo tutorial Denis. Thanks for posting. What steel do you prefer for bringing out a strong line?
Great tutorial Denis. Thanks. I really like the look of that blade. Can you show us the pic of the finished knife.