Additive manufacturing, or 3D printing, is the process of making usable objects from digital models. By building up successive layers of material, additive manufacturing provides access to capabilities not available with traditional manufacturing processes. Not only can additive manufacturing technology build objects using materials such as plastics and metals, but advances have proved successful in…

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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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At The C.A. Lawton Co., the design review process begins when the customer reviews the required casting shape with our casting engineer. This consists of drawings or models of a casting-friendly pattern and one or more core boxes to produce the highest quality casting. Technical discussions typically include tolerances required, allowable machine stock, machined and…

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Lawton Pattern Tooling

Designing a pattern can be quite a challenge, especially if you don’t have a well-defined process. At The C.A. Lawton Co., the design review process begins when the customer and the foundry’s casting engineer review the required casting shape. It consists of drawings or models of a casting-friendly pattern and one or more core boxes.…

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Lawton Transfer Tooling

Many times, long-term production tooling is manufactured for use at one foundry and moved to another foundry during its useful life. This practice, referred to as “transfer tooling,” presents a number of challenges to the manufacturer who owns the pattern as well as the foundry receiving the work. These issues include the condition of the…

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At The C.A. Lawton Co. (Calco), our team of customer advocates hears similar questions about our capabilities, metrics and processes from many current and prospective clients. And with our blog being built to serve as an educational resource for readers, we’d like to answer some of these common questions in today’s post: Castings What kind…

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