SPECIALLY COLLECTED PAPERS
Shimadzu Review 78[1・2] (2021)
Abstract
Given the increasing awareness of exhaust gas regulations and fuel efficiency, it has become important to reduce automobile weight. Conventional automobiles included many steel parts that were easier to make cheaply and strong, but over the years such parts have been successively substituted with lighter weight aluminum die cast parts. Aluminum die cast parts are made by using a plunger to quickly fill a die with molten aluminum. Though the technology is intended for mass producing identically shaped parts, the parts occasionally contain voids that can cause strength deficiencies. If the voids extend to the surface they can be rejected by an external inspection, but an X-ray inspection system is required to observe internal voids. Conventionally, such systems were mainly used by large companies with sufficient financial capacity, but recently there has been an increasing number of inquiries for X-ray inspection systems from smaller companies due to customer requirements and other factors. Furthermore, due to the growth of social media, in some cases a single product problem has expanded to damage the trust of an entire company, which has renewed awareness in the importance of quality control. This article describes unique functionality developed specifically for 2D X-ray imaging applications.
1Shimadzu Industrial Systems Co., Ltd., Shiga, Japan
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