THE MICROTECHNOLOGY INFORMATION PORTAL/THE SHOW
04.12.2023
D - Tools-Accessories-Mechanics
Efficiency increase in tool and mold making with Nakanishi Jaeger spindles
The demands on tool and mold making are constantly increasing. The required criteria with regards to quality, costs, and a short processing time are increasing persistently.
The ongoing trend for miniaturization of workpieces is continuing and delicate ridges, beads, or small cavities must be produced even on large molds.
The workpieces are generally produced on state-of-the-art CNC machines, which have corresponding speeds and torques in order to be able to carry out roughing and finishing operations with larger tools. However, for small solid carbide milling tools, speeds (depending on the material and hardness) of up to 100,000 rpm and larger are required in order to be able to work efficiently. Accordingly, the machines quickly reach their limits when it comes to speed if small tools are used. In practice, the limit speeds of the machine are then used for processing.
However, the main spindle of the machine tool cannot reach the optimum cutting speed of small, modern high-performance cutting tools in general. Correspondingly, the feed values have to be reduced and the production costs increase, sometimes tremendously, depending on the complexity of the workpieces.
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