The first installment of this article covered the problem of properly cooling forged microalloyed steels. In this second and final article we discuss details on heat-transfer coefficients, experimentation, production simulation and final results enabling more extensive use of this class of steels.
February 7, 2020
The first part of this article ran in the December 2019 issue. It gave an overview of a challenge facing forgers of microalloyed steels – controlled cooling!
The Jominy end-quench test is used to measure the hardenability of a steel, which is a measure of the capacity of the steel to harden in depth under a given set of conditions. This article considers the basic concepts of hardenability and the Jominy test.
Ring-rolling simulations have matured into a necessary tool for the efficient production of defect-free rings. Most defects encountered in production can now reliably be detected in a simulation, and solutions for the defects can be quickly implemented and verified. The optimized ring-rolling technology-chain simulation virtually ensures a defect-free product, and the information from the successful simulation can be used to set the operating parameters of your rolling mill.
is the main constituent in titanium alloys, of course, but they can contain a
significant amount of other elements, which are added for a variety of
metallurgical reasons. The strength of titanium alloys can often be comparable
to steel, but they have the advantage of having only about 60% of the weight.
This article continues FORGE’s series on forging
materials. The first installment on nonferrous forging materials discusses
aluminum alloys that are used in forged components. A general description of
aluminum alloys is followed by details of their chemistry and microstructure.
all steels, stainless steels are iron-based alloys. They are considered a
special class of steels because of their high alloy content and their special
properties as compared to plain-carbon and low-alloy steels.
Check out the February 2020 issue of FORGE, featuring our cover story on the "Proper Use of IR Temperature Sensors (Part II)", "How Hatebur Solved a Shearing Production Problem", "Optimized Cooling Rates of Microalloyed Steels (Part II)", and much more.