Sökning: "Hamed hoseiny"

Hittade 2 avhandlingar innehållade orden Hamed hoseiny.

1. 1. Influence of Microstructure on the Machinability of Prehardened Mould Steels

   Författare :Seyyed Mohammad Hamed Hoseiny; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Prehardened mould steels; Milling; Drilling; Turning; Tool life; Machinability;

   Sammanfattning : Mould steels are mainly employed in moulding of plastic products, and also some metals withlow melting temperature such as magnesium alloys. The ever-growing usage of plastics in theindustry, especially the automotive industry, and in everyday life, has increased the utilizationof mould steels. LÄS MER

3. 2. The Metallurgical Aspects of Machinability in Prehardened Mould Steels

   Författare :Seyyed Mohammad Hamed Hoseiny; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bainitic structure; Tool Life; Cutting Temperature; Cutting Force; Machinability; Microstructure; Tempered Martensite; Plastic Mould Steels;

   Sammanfattning : High economical efficiency obtained by utilizing prehardened mould steels in plastic mould making has increased the usage of these types of steels to a great extent. Generally, prehardened mould steels are applied for large moulds and moulds for moderate production runs, and one of the advantages of using this type of steel is that no heat treatment is necessary for putting the mould in use. LÄS MER