Wire cutting technology makes micromachining of medical devices more economical
2018-12-01 17:12:16
The miniaturization and precision of the medical industry is driving the advancement of wire cutting technology. On the one hand, the use of high-precision fixtures and corresponding peripheral facilities, so that standard wire-cutting machine tools can continue to meet the needs of the medical industry; on the other hand, through EDM technology, one can find a component error to a few Processing within the micrometer range. Today, the medical industry is growing. In the German market alone, there are about 16,000 companies that manufacture about 10,000 products for the medical industry market, and the growth rate has risen sharply. In particular, the trend of miniaturization is moving forward. People are always pursuing the simplification of production processes and exploring a safe production process. In this regard, the micro-machining process has been favored by people. Here, EDM is a suitable process. For example, wire cutting with a tolerance of only 0.001mm is not uncommon. Ultra-precision jigs, high-precision turrets and rotating shafts are used to meet the industry's requirements for product accuracy. And the production of high-quality artificial joints, teeth, micro-pump and other transplant components and clinical equipment, brain treatment needles and pacemakers and other products. In such products, many products have a tolerance range of only 0.001 mm, which is not uncommon. Extremely high precision is one aspect, and economic efficiency is another. Hirschmann's designers collaborate with medical industry companies and research institutes to develop a variety of fixtures and multiple clamping systems that meet the economical requirements of wire cutting and milling of medical components. The parts to be machined are often complex and sensitive parts, for which standard type clamps cannot be used.
Synchronous clamping and pre-conditioning work and compound machining outside the machine tool can significantly reduce manufacturing costs. At the same time, the experience gained in standard clamping systems for EDM and wire cutting as well as HSC milling or water cutting can be of great help. Since such processing solutions can be automated, people still value these processes very much. Wire cutting machines are among the most accurate processing equipment. Many famous companies use wire cutters and A-axis to manufacture products such as transplant joints. The workpiece is clamped by a clamp or pallet system. The A-axis acts as the sixth axis and accepts synchronous control of the wire cutter. In terms of the outline of the components, a variety of needs can be met. Direct measurement system controls the rotation of the shaft In order to meet the processing accuracy requirements of the medical industry, all A-axis is equipped with a direct measurement system, so that the accuracy of the components can reach ±2.5". To clarify this accuracy level, the following An application example is given: if the diameter of the workpiece is 180mm, the maximum error of the index is ±0.001mm. The A-axis can be equipped with a pneumatic chuck, so that the machining process can be automated. Combine the wire cutter and an additional The rotating shaft can open up a new world for processing a wide variety of rotationally symmetrical components. The blank to be processed is placed on the rotating shaft, and the wire on the wire cutter can be rotated at a maximum speed of 1500 r/min. The shape of the workpiece is arbitrary. The strength of this process lies in the safety of the process and the high surface quality of the parts, even for fine products. This is because when this process is used, there is no such thing as round grinding. Lateral processing pressure that can be produced. Specific meshes, spikes, circles in the range of a few millimeters to a few microns Or the ball can achieve a very high surface quality. In order to achieve this effect, in addition to the concentric accuracy of the shaft, a patented clamping system for circular workpieces can achieve a concentricity and an amount of oscillation of approximately zero. In the medical equipment industry, typical examples of wire cutting processes are brain surgery needles, pacemaker components, vein dilatation devices and biopsy instruments, as well as miniature die-cast cores and ejector pins. Machining. Workpiece replacement can also be automated through the combination of turning and wire cutting functions. The latest development in wire cutting technology is a combined rotary and positioning mandrel that not only achieves wire cutting, but also in one clamp. In the middle, it is also possible to achieve flat cutting, thereby improving the economics of production.
Synchronous clamping and pre-conditioning work and compound machining outside the machine tool can significantly reduce manufacturing costs. At the same time, the experience gained in standard clamping systems for EDM and wire cutting as well as HSC milling or water cutting can be of great help. Since such processing solutions can be automated, people still value these processes very much. Wire cutting machines are among the most accurate processing equipment. Many famous companies use wire cutters and A-axis to manufacture products such as transplant joints. The workpiece is clamped by a clamp or pallet system. The A-axis acts as the sixth axis and accepts synchronous control of the wire cutter. In terms of the outline of the components, a variety of needs can be met. Direct measurement system controls the rotation of the shaft In order to meet the processing accuracy requirements of the medical industry, all A-axis is equipped with a direct measurement system, so that the accuracy of the components can reach ±2.5". To clarify this accuracy level, the following An application example is given: if the diameter of the workpiece is 180mm, the maximum error of the index is ±0.001mm. The A-axis can be equipped with a pneumatic chuck, so that the machining process can be automated. Combine the wire cutter and an additional The rotating shaft can open up a new world for processing a wide variety of rotationally symmetrical components. The blank to be processed is placed on the rotating shaft, and the wire on the wire cutter can be rotated at a maximum speed of 1500 r/min. The shape of the workpiece is arbitrary. The strength of this process lies in the safety of the process and the high surface quality of the parts, even for fine products. This is because when this process is used, there is no such thing as round grinding. Lateral processing pressure that can be produced. Specific meshes, spikes, circles in the range of a few millimeters to a few microns Or the ball can achieve a very high surface quality. In order to achieve this effect, in addition to the concentric accuracy of the shaft, a patented clamping system for circular workpieces can achieve a concentricity and an amount of oscillation of approximately zero. In the medical equipment industry, typical examples of wire cutting processes are brain surgery needles, pacemaker components, vein dilatation devices and biopsy instruments, as well as miniature die-cast cores and ejector pins. Machining. Workpiece replacement can also be automated through the combination of turning and wire cutting functions. The latest development in wire cutting technology is a combined rotary and positioning mandrel that not only achieves wire cutting, but also in one clamp. In the middle, it is also possible to achieve flat cutting, thereby improving the economics of production.
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