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- Title
Prediction of Quench-Hardness within the Whole Volume of Axially-Symmetric Workpieces of any Shape.
- Authors
Liščić, Božidar; Singer, Saša; Smoljan, Božo
- Abstract
A quench probe, based on temperature gradient method was used to measure and record cooling curves when quenching real axially symmetric workpieces of any complex shape in liquid quenchants. Calculation of relevant heat transfer coefficients (HTC) is based on the cooling curve measured just below surface of the cylindrical probe of 50 mm diameter. A 2-D computer program, based on the cooling time from 800 to 500°C (t8/5), and the Jominy hardenability curve of the steel grade in question, is used to predict the hardness distribution within the whole volume of the workpiece, all at once, which is a unique feature of this method.
- Subjects
STEEL quenching; HARDENABILITY of metals; TEMPERATURE inversions; CONJUGATE gradient methods; NUSSELT number; COOLING curves; COMPUTER software; HYDRONICS; TEMPERATURE effect
- Publication
Journal of Mechanical Engineering / Strojniški Vestnik, 2010, Vol 56, Issue 2, p104
- ISSN
0039-2480
- Publication type
Article