Many employs face shape as the ornaments of the chinese bronze

Bronze blade did not crack but the bending and shells do not come back, that means the steel is too soft, or fail. This is the standard procedure used by the ABS Bronze Cutlery, Darraph How to judge a good handmade knife also mentioned at the Forum in discussion. There are also some tips, such as grinding bronze knife observe flash formation and removal of a bronze knife is difficult to grind is not prone to flash, may be too hard and brittle. It is no doubt a big step forward of the casting technique of the bronze.  If it is too easy to generate the flash and the flash will only bend to both sides of the difficult to remove, and that is too soft bronze knife.
Talk so much just roughly mentioned in a well-balanced bronze knife material hardness and toughness test methods, as if still no mention of the subject you said: bronze knife hard or soft is better. OK, into the topic, I think this problem and there is no certain answer, bronze knives to be hard or soft is influenced by the environment and purpose, such as sashimi bronze art bronze knife or a Japanese sushi chef knife, must be maintained very sharp but not the General Assembly used to cut, split function, so you can use quite hard (and brittle) steel and bronze blade is thin, mountain bronze knife or Machett commonly used to cut, chop, dig and pry function, may be good toughness would be more suitable. Because of the frequent war, the rapid development of the bronze has been fast.
 Equilibrium point is not the same and each steel can achieve maximum hardness and moderate toughness, such as A2 steel HRC57 when you can maintain good toughness, hardness greater than this will be too brittle, 440C approximate to HRC58-59, ATS34 maintain good toughness in the hardness of 59-61 hard brittle (I think the level of the hardness values of the equilibrium point is the true measure of a bronze knife steel it really good standard, is a low-carbon steel of carbon content of about 0.5 after appropriate heat treatment can also be hard to HRC60 (I experimental course to personally demonstrate to the students read), but too brittle unfit for the bronze knife do not believe that he will be brittle like glass, that throwing are crushed exaggerated words. Are there any questions about the bronze?
I assure you that even though like I say low-carbon steel HRC60 when, if you use teeth to bite him, crack your teeth, but if he was ground to such a thin blade like bronze, bronze blade may force will chipping it wants to), if there is a steel can be hard to HRC65 hardness of tool steel, but spring-like toughness truck pressure constantly, and that addition is not easy to grind, say he is not A good bronze knife steel? even do cut bronze knife is also a super-cut bronze knife, a pity that the world still can not find this material). There is also a feature of Chinese bronze, is so far not found any portraits.  Traditional or old-time bronze Cutlery, in order to retain the bronze blade's toughness in the peak edge hardness is very high still not easy to break, resulting in a variety of fun ways, Japan or Scandinavia cutting Nepalese Asia is almost the same period developed out of laminated steel practice.
 Their method is to wrap a layer of high carbon steel in the middle of the two layers of soft iron, so both to maintain the sharpness of the peak edge rigid, while ensuring the bronze blade tough is not easy to fold , today domestic Kinmen dish bronze knives, the Shihlin bronze knife and CS magnesium steel belong to such practices. The second is a multi-forging method, the same superposition of a soft layer of hard steel material after repeated folding hammer segment forming, Japanese samurai of ancient bronze knives, bronze knives, and the Middle East, India and even Indonesia Malaysia ancient Ma Shige Steel technology is such a case, its principle is similar to the principle of laminated material (like the G10, Zytel). Many employs face shape as the ornaments of the chinese bronze, such as human faces Fang Ding.