Machine Downtime Effect on the Warm-Up Period in an Economic Production Quantity Problem

Success in the industrial sector is compromised by diverse conditions such as imperfect product production, manufacturing line interruptions, and unscheduled maintenance. The precise use of common practices production environments an available solution to eliminate some these issues. Applying a warm-up period process adequate cost-effective for almost all companies. It improves equipment’s productivity helps generate fewer defective products. Even though several inventory management studies have included phase their models, its economic quantity (EPQ) models remains largely unexplored. Adding cycle minimizes maintenance expenses products increases machine’s performance. In this study, dependency between machine downtime length examined first time. time depends on off-state period: if has longer operation timeout, then needed. model includes function relative two types products: scrapping reworking items. study concluded with numerical examples, sensitivity analysis, insights related EPQ.