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5 articles for “blow holes”
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Optimization of Green Sand Casting Process Parameters by Artificial Neural Network
Abstract: In this paper, artificial neural network (ANN) is used to train the network which can predict the casting defect. L27 orthogonal array is used as input matrix for training of neural network. NN tool is used to train the network for prediction of defects. Major defects observed on shop floor were; misrun, blowholes, inclusions and porosity. Moisture, permeability, LOI, compressive strength, volatile content, vent holes, pouring time, pouring temperature, mould …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 75–80 Read article
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Minimizing the Sand Casting Defects Using Taguchi Method
Abstract: The global market is becoming more and more quality conscious now a days. This Research work includes minimization of sand casting defects in C.I. based foundry. The survey was carried in small scale CI based foundry (Surat). Major defects were observed are misrun, coldshut, blowholes, and porosity. Taguchi method is used to optimize the control parameters like moisture, permeability, pouring time, pouring temperature. L18 orthogonal array is used in this …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 14–17 Read article
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A Review Paper on Shrinkage Defect in Investment Casting
Abstract: Investment casting is also known as lost wax casting process. It is used to make various components of machines and jewellery with good accuracy compared to other castings. It is also used to make difficult components which may not be possible by conventional casting process. Investment casting is very helpful process for higher quality requirements. But still, there are many defects occurring in the process, like shrinkage, cold run, blow …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 3, 2017 · pp. 18–20 Read article
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Effective Design of Riser for Defect-Free Casting
Abstract: Accurate design of riser helps in producing a defect free casting part. Inaccurate design of riser results in defects like hot spot, shrinkage and blow holes. Present paper focuses on the study of the different parameters occurring during a solidification process, equation which governs the solidification problem and different boundary conditions which play vital role during heat transfer in a solidification process. A literature study is also been conducted in …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 2, 2017 · pp. 23–27 Read article
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Optimization of Green Sand Casting Process Using Genetic Algorithm
Abstract: This research includes minimization of some of the sand casting defects like Blowholes, Cracks, Porosity using genetic algorithm. Data collection is carried out from medium scale sand casting industry. Some of critical parameters like moisture, permeability, LOI, compressive strength, volatile content, vent holes, pouring time, pouring temperature and mould hardness are identified in the process. L27 orthogonal array is selected. Genetic algorithm is used to optimized the process parameters. Process …
Published in Trends in Machine design · Vol. 4, Issue 2, 2017 · pp. 25–29 Read article