07 Oct 2009 @ 12:38 AM 
 

The Importance Of Stainless Steel Machining

 

Stainless steel is an excellent material for fabrication. Many fabrication facilities have used it before, but few are experts in stainless steel fabrication.

An advantage of using stainless steel is that it is better able to be fabricated by way of the common fabrication methods, usually it is much better than the commonly known carbon steels. Stainless steel can be folded, bent, cold and hot forged, deep drawn, spun and roll formed. Because stainless steel is extremely durable and hardens quickly, fabrication and machining can require a greater force than what is usually applied to carbon steels. This is why that more powerful machines and tolls may be needed.

stainless steel machining is the broad term used to describe the machining functioning of a substance by a cutting tool. Considering stainless steel has distinctive properties compared to carbon steels, alternative methodology is required. The main reason for the difference is because stainless steels are rather tough and it has the inclination to seize and gall.

For stainless steel machining, it can be a tough material to machine. Stainless steel is an ideal material since it is highly corrosion resistant. A few general guidelines for stainless steel machining include:

- The machining tool must be sturdy, powerful, and be buffered from vibrations.
- It’s important to keep the cutting edge sharp at all times as dull tools can damage the surface.
- When applicable, try to keep the cuts light to reduce hardening from the riding of the surface.
- Adequate clearance needs to be provided to keep the tools from touching the project.
- Larger tools are preferred to help to dissipate the heat.
- To reduce chips from damaging the work, use chip breakers or chip curlers.
- To restrict the tool from riding the work, use a fixed feed.
- Appropriate use of coolants and lubricants are important[spin] to protect both the tool and the project being worked on.

After the machining process is [spin]finished, it is necessary to clean and clear away the cutting fluid and degrease the work piece and work area. This can be done with standard degreasing products. If the work piece has been put under extreme heat or when maximum corrosion resistance is needed, it may be necessary to passivate or pickle and passivate. Passivation is a process that is used to make a surface passive, in other words a surface film is created that causes the surface to lose its chemical reactivity. Pickle and passivate is a two step process used to create a surface that is immune to corrosion. Pickling is a way of chemical descaling done to remove scale and the passivation is done to make the surface more passive and corrosion resistant.

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Posted By: freetraffic
Last Edit: 07 Oct 2009 @ 12 38 AM

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