sand foundry defect

1. Introduction and Research Significance In recent years, the rapid development of metallurgy, aviation, shipbuilding, architecture, and heavy machinery has

In this work, I aimed at eliminating the severe shrinkage porosity defects that occur during the investment casting of a

In the process of manufacturing mechanical components, various defects may emerge, posing serious threats to equipment operational safety. The inspection

As a fundamental manufacturing process, sand casting remains one of the most versatile and widely adopted methods for producing metal

Surface quality control is an essential requirement in both additive manufacturing and conventional casting industries. Porosity is one of the

Cast iron, particularly gray cast iron and ductile iron, remains one of the most important engineering materials in modern manufacturing.

In this work, I present a comprehensive study on the optimization of the sand casting process for a spray pump

1. Introduction The global energy landscape is undergoing a profound transformation, shifting towards low-carbon, pollution-free, safe, affordable, and sustainable energy

In my research, I focus on the automatic detection of internal defects in sand foundry defect specimens using ultrasonic testing

Chapter 1: Introduction Sand foundry defect, particularly gas porosity, represents one of the most prevalent and technically challenging defects encountered

My research focuses on applying solidification simulation technology to improve casting production quality, with a particular emphasis on predicting and

This paper presents a comprehensive Six Sigma DMAIC approach to reduce the high rejection rate caused by sand foundry defects

In my daily work as a foundry quality engineer, I have been dealing with a persistent problem: hole-type defects in

In the production of automotive crankshafts, the occurrence of hole-type defects remains one of the most challenging quality issues. Drawing

In the modern manufacturing industry, sand foundry defect detection plays a critical role in ensuring product quality and safety. Castings

This thesis focuses on the image simulation of shrinkage cavity and porosity defects in castings, particularly within the framework of

1. Introduction to Casting Simulation and Sand Foundry Defect Control The foundry industry plays a vital role in the manufacturing

In this thesis, I present a comprehensive study on the recognition of internal defects in aerospace light-alloy castings using X-ray

In my research, I focus on the detection of sand foundry defect on industrial castings. The casting industry is one

This thesis presents a comprehensive investigation into the application of infrared thermographic nondestructive testing (NDT) for the detection of internal

As the power transmission and transformation industry continues to advance, Gas Insulated Switchgear (GIS) has become widely adopted due to

In my research, I focus on developing an automated visual inspection system for sand foundry defects. The work is motivated

The foundry industry has a long history and continues to expand its scale in modern industrial production. Casting processes are

This dissertation addresses critical manufacturing challenges encountered during the production of the CPR1000 nuclear main pump bearing support, a heavy-section

In the present work, I systematically studied the influence of coating wettability to liquid polystyrene (the decomposition product of foamed