Modification of Constrained Rod Casting Mold for New Hot Tearing Measurement

Hot tearing severity was evaluated in this experiment by introducing a new apparatus called Constrained Rod Casting Modified Horizontal (CRCM-Horizontal). Six constraint bars with different lengths can produce hot tearing on the cast sample. Mold position was modified from vertical to horizontal and...

Full description

Saved in:
Bibliographic Details
Published in:Archives of metallurgy and materials 2018-01, Vol.63 (3), p.1201-1208
Main Authors: Malau, V, Akhyar, Tri Iswanto, P
Format: Article
Language:English
Subjects:
Aluminum
Casting
Constraints
crcm-horizontal
Digital cameras
hot tearing
hts formula
Liquid metals
Molds
Tearing
Vertical orientation
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Hot tearing severity was evaluated in this experiment by introducing a new apparatus called Constrained Rod Casting Modified Horizontal (CRCM-Horizontal). Six constraint bars with different lengths can produce hot tearing on the cast sample. Mold position was modified from vertical to horizontal and the shape was changed from a harp shape to a star shape, which allows for the liquid metal to feed into each rod cavity simultaneously. Hot tearing development was recorded along the bars by a digital camera. A new Hot Tearing Susceptibility (HTS) formula was developed for quantitative investigation of hot tearing on a cast sample. The parameters of the HTS formula are bar length of cast sample (Li), tear severity (Ci) and location of hot tear (Pi). Footprint charts and hot tear scales are used to illustrate hot tearing severity. The experiment was conducted with Al-1.36Zn-1.19Si and Al-5.9Cu-1.9Mg alloys to investigate the sensibility of the apparatus and modification its operation.
ISSN:1733-3490
2300-1909
DOI:10.24425/123792