A review on cutting tool technology in machining of Ni-based superalloys

In this paper, a state-of-the-art review on cutting tool technology in machining of Ni-based superalloys is presented to better understand the current status and to identify future directions of research and development of cutting tool technologies. First, past review articles related to the machining of Ni-based superalloys are summarized. Then machinability of superalloys is introduced, together with the reported methods used in cutting tool design. The current researches on cutting tools in the machining of superalloys are presented in different categories in terms of tool materials, i.e., carbide, ceramics, and Polycrystalline cubic boron nitride (PCBN). Moreover, a set of research issues are identified and highlighted to improve the machining of superalloys. Finally, discussions on the future development are presented, in the areas of new materials/geometries, functional surfaces on the cutting tool, and data-driven comprehensive optimization.

ANALISIS PENINGKATAN PRODUKSI DENGAN RANCANG BANGUN ALAT PEMOTONG PADA PROSES PACKING

Improving company productivity and efficiency in empowering human resource assessment is fulfilled to achieve company goals. one factor that can be done is the development of more effective equipment. Plastic cutting tools in the product packaging process are still simple, less efficient and less effective. The value engineering method is used as a method for selecting an alternative modification to a modified cutting tool and analyze it. At the analysis stage, two alternative modifications were modified from the improvement engine, where the initial design is used as a benchmark in performance evaluation. The result of tool design is the reduction in the number of defective products by 20.68% to 3.1% and The result of the cutting tool design is that there is an average increase in production 246 products per day.

Conceptional cutting tool design for internal thread turning

This article describes the different machining methods of the ball nut thread. One of the disadvantages of machining high pitch ball nuts by grinding process is to produce a modified tool profile to avoid collisions between the tool holder and the workpiece. However, by using profiled lathe inserts, it is possible to produce the thread profile of the ball nut using turning technology. The applicability of the technology is verified by tooling and experimental machining based on conceptual designs, the results of which are described at the end of the article.

Optimization of compound die piercing punches and double cutting process parameters using finite element analysis

This article investigates different types of compound die piercing punches and double cutting operation parameters in terms of optimization using finite element technique, Taguchi method, regression analysis, and analysis of variance. The article overcomes the current knowledge gap in studying various cutting edges of piercing punches such as flat, chamfered, flat edge with concave hemisphere, and convex shaped when using the compound dies in stamping operations. The analysis of the compound die is carried out using ANSYS software. The main focus is to determine the contribution of key parameters for obtaining optimum cutting tool design. The best piercing punch is selected based on minimum burr height of the product. The values of cutting process parameters and burr heights have been analyzed using Minitab software. The results obtained indicate that the burr heights of the final product are at a minimum when the sheet metals are thicker and larger when the sheets are thinner. The chamfered and convex punches provided minimum burr heights which are as low as 0.034 mm for a typical sheet metal. This study provides a better outcome compared to the available experimental data in the literature. The investigation also designed efficient compound dies resulting in improved product quality.

Machining

Machining is one of the most important manufacturing processes. Aluminum and its alloys play a critical role in component manufacture. This article will provide the reader with a current overview of machining practices which will include: aluminum alloy classification, machining performance measures such as cutting forces, tool life, chip forming and breakability, cutting tool design, and area that provide continuing process challenges such as high-speed machining, dry machining and machining of aluminum metal matrix composites.