生产实践表明，高速钢570kg扁锭轧制开坯代替锻造开坯是可行的，通过轧制开坯生产率和成坯率提高，能耗降低，其成本为锻坯的1／3。 Production practice shows that it is feasible to open a billet of 570kg high-speed steel instead of forging a billet. The billet productivity and the billet forming rate are increased through rolling, and the energy consumption is reduced, and the cost is 1/3 of the forging billet.