MANUFACTURING METHOD OF HIGH STRENGTH PART AND THE HIGH STRENGTH PART THEREBY

摘要

The goal of the present invention is to improve productivity and workability and simultaneously to achieve high strength by processing a part made of steel and by increasing its strength. To this end, the present invention provides a method of manufacturing a high strength part, including processing a steel material having a first tensile strength as a first member having a predetermined form of a finished part, and nitriding the first member in a salt bath including a non cyan group nitrate to form a second member having a second tensile strength that is greater than the first tensile strength, and a high strength part manufactured using the method.