If I only use a hand hammer, it needs to be heated more times than a power hammer due to insufficient efficiency. In the step of joining steel and iron together, it also needs to be heated to 1000 ℃ at least three times. May I ask if this will affect the quality of the steel? If I use a power hammer, I can heat it up less times ，will I got better quality of the steel？
Thank you for your comment. From experience, we believe that heating to 1000℃ three or more times has a negative effect on the quality of the steel. Progress of decarburization may be observed. We believe that the use of a power hammer contributes to better steel quality.
@@鍛冶ラボ-s4bThank you for. It seems that I need to get a power hammer, because I feel that The chisel or knife I forged ,Hardness and toughness are qualified,but the “切味” is not good，I think I should try to lower the forging temperature and reduce the heating frequency as much as possible.
