As mentioned in last month's Tooling by Design column, I recently conducted an informal survey of die makers and tooling engineers, asking them: "What are the most troublesome problems that you experience in your press shop?" This month, I'll discuss one of those most-cited problems: tool chipping and wear. In general, the beneficial properties of higher-strength sheet materials used in automotive applications-high yield strength, high tensile strength and high ductility-also contribute to degraded tool life and promote premature failures.
展开▼
