Warpage simulation and the experimental verification of an L-plate sand mold casting by using the thermo-elastoplastic FEM code

2010 ◽  
Author(s):  
Kenichi Ohura ◽  
Akitake Makinouchi ◽  
Cristian Teodosiu ◽  
Yutaka Nagai ◽  
Jyuichi Nagse ◽  
...  
Keyword(s):  
Experimental Verification ◽  
Sand Mold ◽  
Mold Casting

scholarly journals STRUKTUR MIKRO DAN SIFAT MEKANIS ALUMINIUM PADUAN SERI 6063 HASIL COR DARI CETAKAN LOGAM, PASIR RESIN FURAN DAN PASIR KOMOSSA

POROS ◽  
2017 ◽  
Vol 14 (1) ◽  
pp. 72 ◽  
Author(s):  
Chris Marvin ◽  
Eddy S Siradj ◽  
Sobron Yamin Lubis
Keyword(s):  
Aluminum Alloy ◽  
High Hardness ◽  
Raw Material ◽  
Sand Mold ◽  
Metal Mold ◽  
Alloy Series ◽  
Mold Casting ◽  
Furan Resin ◽  
Survey Results ◽  
High Level

Abstract: Material developments in Indonesia is already very advanced rapidly certainly need high level of violence but has a mass of light. Aluminum should be developed because it possesses a lightweight and available in the land of our country that is rich in agricultural products. As an alternative to strengthen aluminum alloy that is with Si and Mg, as well as the rapid cooling process when smelting. This study was conducted to observe the microstructure and mechanical properties of the raw material of aluminum alloy series 6063. Tests conducted with metal mold, furan resin sand mold, commossa sand mold, the cooling rate of each mold will affect the hardness of the material which can be seen microstructure with microstructural observations. The survey results revealed that the aluminum with a metal mold casting has a hardness of 54 HRB, furan resin sand has a hardness of 40 HRB, sand commossa has a hardness of 33 HRB. Metal mold has a shock force of 0,316 J/mm2, particularly a furan resin sand shock force of 0,265 J/mm2, commossa sand has a shock force of 0.206 J/mm2. Metal mold has a high hardness compared with furan resin sand rated second, while the sand was rated commossa end but increasingly harsh mean tenacity of a material value will increase. According to the test micro structure, the aluminum is brittle, the distance or the distribution of grain will be a meeting or a lot. 

Effect of Different Gating Systems and Sand Mold Binder on the Cast-Quality of Bicycle Frame Produced through Sand Casting Method

2020 ◽  
Vol 402 ◽  
pp. 100-107
Author(s):  
Akhyar ◽  
Husaini ◽  
Masri Ali ◽  
Nurdin Ali ◽  
Farhan Ahmad
Keyword(s):  
Water Glass ◽  
Casting Process ◽  
Sand Mold ◽  
Casting Defects ◽  
Casting Method ◽  
Mold Casting ◽  
Furan Resin ◽  
Bicycle Frame ◽  
The Impact

The bicycle frame produced through the metal casting process by recycling aluminum alloys can be an environmentally friendly alternative solution. Mold types and gating systems used generally affects the quality of the casting product. In this experiment, the effect of gating number and riser type variations (for sand binder) observed on casting defects, hardness, and impact value. Subsequently, chemical composition and microstructure of recycled aluminum metal from bicycle frames produced through sand mold casting are also evaluated. Three types of risers are bentonite, water glass, and furan resin. The results indicate that mold with two gating system has a low porosity as casting defects. The cast-bike frame produced using furan resin reaches the highest hardness value of 46 HRB compared to water glass and bentonite as the binder of sand-molds. The impact test observes 3.9 J carried out by the ASTM E23 sample at room temperature.

Microstructure Observation of AM60 Magnesium Alloy Solidified by Rapidly Quench

2011 ◽  
Vol 409 ◽  
pp. 339-342 ◽  
Author(s):  
Tatsuya Maekawa ◽  
Mitsuaki Furui ◽  
Susumu Ikeno ◽  
Tomoyasu Yamaguchi ◽  
Seiji Saikawa
Keyword(s):  
Cooling Rate ◽  
Volume Fraction ◽  
Solidus Temperature ◽  
Sand Mold ◽  
Slow Cooling ◽  
Microstructure Observation ◽  
Β Phase ◽  
Mold Casting ◽  
Contradictory Behavior ◽  
Permanent Mold Castings

In solidification theory, with a slow cooling rate such as sand mold casting, it is easy to segregate the solute aluminum near the grain boundary of primary α-Mg phase under the solidification in Mg-Al system alloys. Thus, volume fraction of none-equilibrium crystallized β-Mg17Al12 phase showed the higher value compared with metal mold casting with faster cooling rate. However, in our microstructure observation results, the volume fraction of β phase in permanent mold castings was larger than that of sand mold castings. In the present study, these contradictory behavior was investigated by observation of as-solidified microstructure obtained from rapid cooling castings at the just below the solidus temperature of 723, 773 and 823K.

Microstructure and mechanical properties of Mg–3.0Y–2.5Nd–1.0Gd–xZn–0.5Zr alloys produced by metallic and sand mold casting

2017 ◽  
Vol 32 (16) ◽  
pp. 3191-3201 ◽  
Author(s):  
Haohao Zhang ◽  
Liang Zhang ◽  
Guohua Wu ◽  
Antao Chen ◽  
Wendong Cui ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Sand Mold ◽  
Microstructure And Mechanical Properties ◽  
Mold Casting ◽  
Image Position

Abstract

scholarly journals Local microwave heating of sand molds as a means to overcome design limitations in sand mold casting

2014 ◽  
Vol 12 ◽  
pp. 21-28 ◽  
Author(s):  
O. Wiedenmann ◽  
R. Ramakrishnan ◽  
P. Saal ◽  
E. Kılıç ◽  
U. Siart ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Microwave Heating ◽  
Casting Process ◽  
Sand Mold ◽  
Metal Casting ◽  
Temperature Dependent ◽  
Selective Heating ◽  
Thermodynamic Simulations ◽  
Mold Casting ◽  
Absorbing Materials

Abstract. Microwave induced selective heating outmatches conventional mold heating by convective heat transfer in means of energy efficiency and cycle time. Moreover, it provides the opportunity of a local manipulation of solidification and cooling processes within the sand casting mold. In this paper, we investigate the suitability of different highly absorbing materials to indirectly heat up the mostly microwave transparent sand mold. The temperature-dependent permittivity of the involved materials is determined by resonator experiments and subsequently used to simulate the electromagnetic field and the thermodynamic response of the sand mold prior to a metal casting process. Experimental results are presented and compared with the outcome of the coupled electromagnetic-thermodynamic simulations and the influence of local microwave heating on the solidification and cooling of the cast is studied.

scholarly journals Microstructure And Mechanical Properties Of An Al-Zn-Mg-Cu Alloy Produced By Gravity Casting Process

2015 ◽  
Vol 60 (2) ◽  
pp. 871-874 ◽  
Author(s):  
S. Saikawa ◽  
G. Aoshima ◽  
S. Ikeno ◽  
K. Morita ◽  
N. Sunayama ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
High Strength ◽  
Casting Process ◽  
Total Elongation ◽  
Sand Mold ◽  
Structural Components ◽  
Gravity Casting ◽  
Cu Alloy ◽  
Mold Casting

Abstract High-strength aluminum alloy are widely used for structural components in aerospace, transportation and racing car applications. The objective of this study is to enhance the strength of the Al-Zn-Mg-Cu alloy used for gravity casting process. All alloys cast into stepped-form sand mold (Sand-mold Casting; SC) and Y-block shaped metal mold(Permanent mold Casting; PC) C and then two –step aged at 398-423 K after solution treated at 743 K for 36 ks. The tensile strength and total elongation of the two-step aged SC alloys were 353-387 MPa and about 0.4% respectively. This low tensile properties of the SC alloys might be caused by remaining of undissolved crystallized phase such as Al2CuM, MgZn2 and Al-Fe-Cu system compounds. However, good tensile properties were obtained from PC alloys, tensile strength and 0.2% proof stress and elongation were 503-537 MPa, 474-519 MPa and 1.3-3.3%. The reason of the good properties in PM alloys, is the lowed amount of undissolved crystallized phase than that of SC ones and primary crystallized alpha-Al phase was finer due to high cooling rate at solidification in casting.

Sign in / Sign up

Export Citation Format

Share Document