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ISBN 978-952-5726-09-1 (Print)<br />

Proceedings of the Second International Symposium on Networking and Network Security (ISNNS ’10)<br />

Jinggangshan, P. R. China, 2-4, April. 2010, pp. 027-030<br />

Research and Application of Auto-profiling<br />

Control Algorithm for 0Cr18Ni10Ti<br />

Qiang Wang 1 , XuGuang Min 2 , ZhongYue Xiao 1 , and Yanhui Zhou 1<br />

1<br />

Jinggangshan University, Ji’an, China<br />

Email: wangqiang2188@tom.com<br />

2<br />

Jiangxi Science&Technology Normal University, Nanchang, China<br />

Abstract—The paper analysis the material composition,<br />

properties and application technology of 0Cr18Ni10Ti , and<br />

it is an understanding of the material’s mechanical<br />

properties and corrosion-resistance. The using of<br />

stabilization heat treatment process, solution heat treatment,<br />

controlling the chemical composition and production<br />

process conditions, etc. improved the overall performance of<br />

0Cr18Ni10Ti and the capacity of arain boundary corrosion<br />

resistance.Method of the multi-punching process and<br />

profiling&following control algorithm processing is then<br />

established and controlled to the machining ration speed,<br />

tool feed and cutting depth,which achieves better results.<br />

The practical application indicates that producing the<br />

flexible laminated membrane coupling by using<br />

0Cr18Ni10Ti makes the coupling highly efficient and<br />

reliable in transmission, lighter, easier to<br />

assemble/disassemble, easier to machine and less costly, and<br />

thereby that such an application is noticeably superior than<br />

those of traditional materials. It guarantees product quality<br />

and increased work efficiency.<br />

Index Terms—control algorithm; 0CrNi10Ti; Coupling Disk;<br />

Solution Heat Treatment; Stabilization Treatment<br />

I. INTRODUCTION<br />

Stainless steel, one of the greatest inventions in 20th<br />

century, covers a range of more than 300 steels. Materials<br />

under this category are widely used for their excellent<br />

corrosion- and erosion-resistance features and their high<br />

comprehensive performances, and consequently they<br />

include nearly all steels for special purpose. How the<br />

steels are corrosion-resistant is decided by the alloy<br />

elements contained in them, which resist faintly corrosive<br />

media including water, steam and air as well chemical<br />

erosive media like acid, alkali and salt. Chromium (Cr) is<br />

a basic element in stainless steels that works against<br />

corrosion. When chromium content in steel reaches at<br />

some 12%, the element reacts with oxygen in corrosive<br />

medium and develops a thin oxide film on the surface<br />

which prevents further corrosion in substrate. Among the<br />

steels of various substrates, ferritic stainless steel,<br />

containing chromium between 12% and 30%, possesses<br />

good corrosion-resistance, tenacity and solderability, all<br />

of which increase along with higher chromium content,<br />

and it behaves better than other stainless steels in<br />

resistance to chloride stress corrosion. Martensitic<br />

stainless steel is of high strength but of poor plasticity<br />

and solderability. Whereas Austenitic stainless steel<br />

contains chromium more than 18% in content and nickel<br />

about 8% and trifle of molybdenum, titanium, nitrogen<br />

© 2010 ACADEMY PUBLISHER<br />

AP-PROC-CS-10CN006<br />

27<br />

and other elements. This metal, combining merits of<br />

austenitic steel and ferritic stainless steel, is of desirable<br />

comprehensive performances and resistance to multiple<br />

corrosions, in addition to its superplasticity. One typical<br />

member of this family is 0Cr18Ni10Ti. By using the<br />

profiling&following control algorithm processing and<br />

controlled to the machining ration speed, tool feed and<br />

cutting depth,which achieves better mechanical<br />

processing results.<br />

II. OVERVIEW OF 0CR18NI10TI<br />

0Cr18Ni10Ti, also called as SS321, is a kind of<br />

chromium-nickel austenite stainless steel in series 300.<br />

Besides chromium, as is known, stainless steel is often<br />

made with alloy elements like nickel, molybdenum,<br />

titanium, niobium, copper, nitrogen and others, which are<br />

added in to meet the requirements of proper use in<br />

different situations and of good machining properties. For<br />

instance, steel with trifle sulfur and phosphor is easier to<br />

be machined, that with molybdenum given a special<br />

structure which is corrosion-resistant and thus usable in<br />

food industry and medical operation apparatus industry.<br />

The 0Cr18Ni10Ti is one of the most used stainless steel.<br />

It is of performances similar to 0Cr18Ni9 except that the<br />

former contains titanium, which is added to restrain the<br />

precipitation of (Cr, Fe) 23C6 at the grain boundaries and<br />

reduce the intergranular corrosion possibility, thus<br />

enhancing the material in its weld corrosion-resistance.<br />

Thanks to its excellent mechanical properties<br />

and anti-corrosion performances, the material is widely<br />

used across industries.<br />

A. Compositions<br />

The material is defined with a broad range of chemical<br />

elements, as shown in Table I. However, rigid control of<br />

its chemical composition is significant. As Cr, Ni and Ti<br />

elements are vital to the resistance to intergranular<br />

corrosion, the chemical composition in the steel should be<br />

determined specifically according to the operational<br />

requirements of parts made from it and to the conditions<br />

of processing equipments. In case that the material is to<br />

be used for welding, some ferrite retained in the steel is<br />

helpful to improve its welding performance. Then the<br />

content of ferrite should be properly figured out in<br />

procedure of composition decision, where Fisher Phase<br />

Diagram is used to determine the as-cast ferrite content<br />

based on nickel equivalent and chromium equivalent. The<br />

chemical elements possibly contained in 0Cr18Ni10Ti

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