Long ago, the Egyptians, Greeks, and Romans developed basic techniques for heating and cooling metals to produce tools and weapons. They made an art of the heat treatment process, without all the electronic aid available today. They were, of course, limited in both what they could make and what they could do with it,
It’s probably no news to those of us who had hip or knee replacements that something magic allows us to walk again as we did when we were much younger. Those years of practicing extreme sports, like squash or long-distance running, took their toll. It was titanium, that wonder metal that allows us to
The Right Material Matters: Ensure Performance and Reliability with Expertly Forged Parts Corrosion of a metal is a chemical or electrochemical process where the surface atoms of a solid metal react with a substance that is in contact with the exposed surface. The corroding medium is usually a liquid, but can be a gas
Over the past several decades, the aerospace industry has been the impetus for the development of the high-nickel alloys we call Superalloys. When we think of heat resistance, coupled with corrosion resistance, creep strength, and toughness, we might at first think of austenitic stainless steels with high chromium and nickel contents and other alloy
The metalworking industries, and many others, couldn’t operate without tool steels. This branch of alloy steels serves to cut and grind and bend and deep draw metals and materials from one form or shape to another. They are indispensable. The basic requirements for a tool steel are hardness, thus wear resistance, fatigue strength, toughness,
Aluminum is light, can be alloyed, forged, and heat treated to increase its strength. It may be hot and cold formed, machined, and welded. Its density is about one third that of steel. AMFG has solid experience in the fabrication and use of aluminum and its alloys. Extraction of the metal from its ore
Lightweight and Strong - At A Cost Titanium is an expensive metal. But it’s light, strong at sub-zero, ambient and elevated temperatures, tough and ductile, corrosion resistant and relatively easy to form and machine, although it is generally twice as costly to machine as aluminum. It has enabled us to fly, and at
Many Grades. Many Applications. There is a classification of steels, alloy steels, AISI/SAE, that covers some one hundred grades, from a nominal 0.10% carbon, through to a nominal 1.0% carbon. The grades are used in myriad applications in the aerospace, agricultural, automotive, defense, and oil and gas industries. They are also used to
Understanding Heat Treatment Annealing reduces the hardness, improves machinability, facilitates cold forming, produces a desired microstructure, and alters mechanical properties. Annealing normally means full annealing, which involves heating the steel - which has a structure of ferrite plus carbide - to its austenitizing temperature, leaving it at that temperature (soaking) for a predetermined
What are the primary and secondary melting processes that ensure the soundest, cleanest, alloy ingots for forging? Most metals and alloys, particularly steel, are air melted, meaning no controlled atmosphere is involved. Air melting economically gives alloys those properties needed for less-demanding applications, and many specialty alloys are still air melted today. The
