Which of the following is NOT a secondary processing method?

Cutting is not considered a secondary processing method; it falls into the category of primary processing methods. Secondary processing involves taking materials that have already been formed or shaped and further modifying them into finished products. This often includes methods that refine, enhance, or combine different components to create a final product.

Casting and molding, assembling, and finishing are all secondary processes. Casting and molding shape materials into desired forms, assembling puts together different parts to create a whole, and finishing improves the surface quality and appearance of the product. This distinction helps clarify how various manufacturing techniques are categorized based on their role in the production process. Cutting, however, is typically one of the initial steps in manufacturing, where raw materials are shaped or sized according to requirements.