A Study on Wearing and Tool Life of Shredding Machine Cutters When Cutting Fabric Industrial Waste

Fabric waste treatment of the textile industry is a matter of current concern. Fabric shredding machines are used to shred fabrics for fuel combustion or recycling. In the process of working, the cutter is gradually worn, affecting the working ability of the machine. When the tool wears to the limit value corresponding to one cycle of tool life, the machine must stop working to change the tool. The fabric shredding efficiency and productivity of these machines are highly dependent on the tool life of the cutters. This paper presents a study on tool wear and tool life of cutters of fabric shredding machines. The influence of factors such as cutting speed, cleanliness or soiling of the input fabric on tool life is investigated for two types of tool materials as SKD11 steel and YG9C sintered tungsten carbide. From this, an optimal model to achieve the maximal productivity in a tool life cycle has been developed. Through optimization problem solving, optimal cutting speeds for specific cases have been determined.