Iron, in its pure form, is lustrous, silvery, and soft. Iron’s electrons can spin in the same direction, which means it effortlessly combines with alloying elements. Iron is also polymorphic. Its crystal structure can transform into different forms by changing the temperature and carbon content. Iron’s properties make it valuable to metallurgists and engineers. The…

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In 2017, The C.A. Lawton Co. transitioned from ISO 9001:2008 to ISO 9001:2015. We achieved compliance on February 5, 2018. Earlier in 2020, we announced the achievement of Green Tier 2 and ISO 14001 designations. But we wanted to touch base on the ISO 9001:2015 quality standard so you understand what it is and why…

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One basic principle in reviewing a casting design is Geometric Dimensioning & Tolerancing (GD&T). This system defines and communicates engineering tolerances through symbolic language on engineering drawings. It explicitly describes the part geometry and allowable variations. Using GD&T helps the customer’s design engineer, the supplier’s manufacturing engineer, and quality inspectors to reach consensus on a…

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Guest post by: Daniel Ribeiro da Silva, Materials Engineering, Metallurgist and Lean Six Sigma Black Belt As a typical Foundryman, I am passionate about the foundry environment and the metallurgy science behind the castings’ manufacturing process. This inspiration also comes from my father, who has worked for more than 40 years in the foundry business.…

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After producing its own angle plates and work holding fixtures for more than a century, The C.A. Lawton Co. (Calco), a De Pere, WI-based foundry, pattern, and heavy manufacturing machine shop, will now offer these highest-quality products through a Calco-branded consumer product line being sold directly to machinists and fabricators. The new products will complement…

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At The C.A. Lawton Co. (Calco), we are proud of the reputation our foundry has built over the last two centuries; a reputation for quality, on-time iron casting solutions alongside high-touch customer service. In this series of blog posts, we will be highlighting the “Lawton Difference” and how Calco makes the difficult task of procuring…

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