Weighing Brass Versus Stainless Steel  

Oleh:

Pasko, Michael

Jenis: Article from Bulletin/Magazine - ilmiah internasional
Dalam koleksi: Machine Design (Soft Copy ada dalam http://search.proquest.com/) vol. 81 no. 22 (Nov. 2009), page 34.
Topik: Brass; Stainless Steel; Thermal Conductivity; Manufacturing Costs

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM44.61 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Assemblies made of plastic or other soft materials often rely on threaded metal inserts to secure fasteners and reinforce joints. Though stainless steel may be appropriate for use in some applications, it is often unnecessary. Brass inserts can satisfy the majority of performance requirements while offering significant cost benefits. Raw material costs for brass and stainless steel are typically similar but the cost of machining stainless steel is much higher. Machinability ratings indicate comparative speeds at which materials may be cut while maintaining a quality surface finish. Machinability ratings assign efficiency ratings to materials of similar composition, so generalities can be made. Free-machining stainless steel may only be 40 to 50% as efficient to machine as brass. Other austenitic stainless steels may be less than 40% as efficient to machine.

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