What is Isothermal Transformation Temperature?
Isothermal Transformation Temperature: The isothermal transformation temperature is commonly known as the Triple T Diagram (TTT). […]
what is Intergranular Cracking?
Intergranular Cracking: Intergranular cracking is a condition in the steel that that will occur between the grain boundaries of the steel. […]
What is indution hardening and what is Induction Heating?
Induction Hardening: Induction hardening is a method of steel surface heat treatment. In order to be able to induction heat treat (harden) the surface of a steel, […]
Define hardness,heat treatment and holding temperature
Hardness: Hardness is the measurement of the steel’s resistance to indentation by pressing into the surface of the steel a specific object—such as a steel or molybdenum ball or diamond indenter—using very specific loads. […]
What is Hardenability?
Hardenability is the ability of the steel to produce the appropriate hardness in relation to the amount of martensite when quenched for its austenitizing temperature into the appropriate quench medium. The resulting hardness will be according to its cross-sectional area and chemistry (composition). […]
Introduction to Characteristics of Tool Steels
Water Hardening Tool Steels: Low hardenability, water quench necessary to form martensite.Oil Hardening Tool Steels: High wear resistant steels. […]
How to identify tool steels
In order for tool steels to be identified by a toolmaker, it is necessary for the toolmaker to understand the method of identification and classification of tool steels. The purpose of gaining this understanding is that there are so many different tool steel manufacturing companies that will produce a very high grade of tool steel [...]
Introduction to History and Applications of aluminum tool
Using aluminum tooling for injection molding is not an entirely new concept. Initially, prototype molds were most commonly made out of aluminum, although the automotive industry has used it for years and it has slowly been gaining popularity with companies outside the automotive realm. […]
You must Know Your Graphite before graphite selection
Graphite selection is critical to the success of the job. It is important to understand the characteristics and physical properties of the different manufactured brands and grades produced. The various grades should fall within one of the four EDM classifications: Angstrofine – Less than one-micron particle size material is used when extremely fine surface finishes [...]
Pitfalls of Graphite Selection by Price
The machined, natural EDM finish is the surface that the EDM process leaves on the metal at the end of the finishing cycle. The finishing cycle puts the most stress on the graphite electrode. Finish settings are high frequency cycles with more sparks, or discharges, per second due to the short on and off times [...]