What is the manufacturing process of stainless steel?
Casting is a process in which molten metal is poured or injected and allowed to solidify in a suitably shaped mold cavity. During or after cooling, the cast part is removed from the mold and then processed for delivery. Casting processes and cast-material technologies vary from simple to highly complex. Material and process selection depends on the part's complexity and function, the product's quality specifications, and the projected cost level. Stainless steel is an extremely durable alloy of steel and chromium which can be polished to resemble a precious metal, is virtually immune to rust, discoloration and corrosion, and and can maintain its strength at high temperatures.
What is the difference between high carbon steel and high speed steel?
High Carbon Steel (HCS):High Carbon Steels are carbon steels which have iron and a carbon content of around 0.6-1.5% by weight. Due to the higher carbon contant compared to low and medium carbon steels, the high carbon steel has higher hardness but lower ductility, lower weldability and higher brittleness.Because of its high hardness and wear resistance they are used in cutting tools and masonry nails. They are also be used in springs, wires, swords etc.High Speed Steel (HSS):The high speed steels have iron mixed with more than 0.5% carbon, more than 5% molybdenum along with other alloying elements like tungsten which varies according to the grade that is 18% in grade T-1, 6%in M-2 grade, 1.6% in M-1 grade and 1.5% in M-2 grade.Although HCS are also used in making tools, HSS tools are more common as they have higher cutting performance at higher temperature compared to HCS.HSS is used to make tools like milling cutters, drills, taps, planar and joint cutters, saw blades etc. High speed steels also found a market in fine hand tools where their relatively good toughness at high hardness, coupled with high abrasion resistance, made them suitable for low speed applications requiring a durable keen (sharp) edge, such as files, chisels, hand plane blades, and Damascus kitchen knives and pocket knives.
Why we can use high speed steel tool in lathe machine?
Why DO we use HS steel in lathes and mills? It's cheap and works great. HSS will work on interrupted cuts where carbide or ceramic would just shatter. Carbide is now used wherever it can be, because it is much harder and lasts longer on production jobs. Your speeds and feeds are much faster with carbide also, so your production rate is quite a bit more than HSS. No need to sharpen the carbide, just recycle the old insert and stick another new in the tool holder - bing, you're back in production. HSS cutters are generally sharpened & reused...many times, in fact. How DOES HSS tooling work? It allows you to hold an edge at high cutting temperatures. Been around for over 100 years. It still has it's place in the world of machining. Carbide is very expensive, but it gives you the advantages outlined above. HSS you'll find used a lot in tool rooms to make other tools and fixtures. Almost all broaches are still made out of HSS.