2. Machining

2.1 Introduction

Among the many techniques available for processing stainless steels, machining mainly concerns long products (bars). Other machining operations (drilling, milling, tapping) also performed on flat products cannot be overlooked. In this case, they often precede assembly by mechanical means: screws, bolts, rivets. Machining, which is the operation of removing material with a cutting tool, is associated with the concept of machinability for a grade or family of grades.

To improve the workability of their products, steelmakers have developed stainless steels with improved machinability thanks to better control of the nature and distribution of non-metallic inclusions. Two types of grade have been developed:

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References

(1) - TALBOT (J.) - Les éléments chimiques et les hommes. - 1995, SIRPE Éditeur, France.
(2) - GUILLET (L.) - Rev. Met. 1904,-1-155, 1905 -2-350, 1906-3-372.
(3) - PORTEVIN (A.) -...

Standardization

French Standards Association (AFNOR)

Définition et classification des aciers (A 02-025) - NF EN 10020 - 09-00
Aciers inoxydables. Partie 1 : liste des aciers inoxydables (A 35-572-1) - NF EN 10088-1 - 09-05
Aciers inoxydables. Partie 2 : conditions techniques de livraison des tôles et bandes en acier de résistance à la corrosion pour usage général. (2e tirage, avril 1997) (A 35-573-2) - NF EN 10088-2...