Abstract
The article presents the application of total productive maintenance (TPM) to analyze the working time indicators of casting machines with particular emphasis on failures and unplanned downtime to reduce the proportion of emergency operation for preventive maintenance and diagnostics. The article presents that the influence of individual factors of complex machinery maintenance (TPM) is different and depends on the machines' modernity level. In an original way, by using correlation graphs, research findings on the impact of individual TPM factors on the castings quality were pre- sented and interpreted. The examination results conducted for machines with varying modernity degrees allowed to determine changes within the impact of individual TPM factors depending on machine parameters. These results provide a rich source of information for the improvement processes on casting quality of the foundry industry that satisfies the automotive industry demand.
Highlights
The total productive maintenance (TPM) allows the smooth functioning of machinery and equipment, which nowadays is a condition that the company must meet to be a competitor in providing highquality products in the shortest possible time
The article presents the application of total productive maintenance (TPM) to analyze the working time indicators of casting machines with particular emphasis on failures and unplanned downtime to reduce the proportion of emergency operation for preventive maintenance and diagnostics
The examination results conducted for machines with varying modernity degrees allowed to determine changes within the impact of individual TPM factors depending on machine parameters
Summary
The TPM allows the smooth functioning of machinery and equipment, which nowadays is a condition that the company must meet to be a competitor in providing highquality products in the shortest possible time. To meet the growing customer demand, enterprises are required to improve production systems at each stage of the product manufacturing, from design through the manufacturing process until its finishing (Zahra Shad et al 2014). Pressure die casting is the most efficient and accurate method for forming a product from the liquid metal in the metal mold, which is fixed on the machine pressure (Fajkiel et al 2008). Molding pressure is applied to the mass production of castings for small and medium-weight, any shape, dimensional accuracies and large thin-walled. Pressure die casting is still growing and is aimed to complete manufacturing process automation. The most important characteristics are shaped by casting machines and devices for finishing
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