Micro-chamber self-lubricating knife tool and preparation method thereof
A cutting tool and micro-pool technology, applied in lubricating compositions, cutting tools for lathes, manufacturing tools, etc., can solve problems such as tool wear, cutting temperature rise, and extremely severe friction conditions
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[0015] Example 1:
[0016] A micro-pool self-lubricating tool. The tool 6 is made of high-speed steel. The tool-chip contact area 5 of the tool rake face 1 is provided with a plurality of micro-holes 2 for storing solid lubricants. The preparation method is as follows:
[0017] 1. Using micro-EDM technology, 18 micro-holes are machined in the tool-chip contact area 5 of the rake face 1 of the high-speed steel tool. The diameter of each micro-hole is 120 μm, the depth of the micro-hole is 240 μm, and the hole spacing is 40 μm.
[0018] 2. Fill each micropore 2 with a solid lubricant powder with a diameter of 2.0μm, the type of solid lubricant is TaS 2 .
[0019] 3. When the tool is used to dry the workpiece 4, due to the high temperature of cutting, the solid lubricant in the micro-holes in the tool-chip contact area 5 softens and drags on the rake face of the tool, which will cause the tool-chip contact on the tool rake face The zone forms a continuous solid lubricating layer.
Example Embodiment
[0020] Example 2:
[0021] A micro-pool self-lubricating tool as described in Example 1, except that the tool material is cemented carbide, and the preparation method is as follows:
[0022] 1. Using micro-EDM technology, 8 micro-holes are machined in the tool-chip contact area of the rake face of the cemented carbide tool. The diameter of each micro-hole is 100 μm, the depth of the micro-hole is 200 μm, and the hole spacing is 60 μm.
[0023] 2. Fill each micropore with 1.5μm diameter solid lubricant powder, the type of solid lubricant is WS 2 .
Example Embodiment
[0024] Example 3:
[0025] A micro-pool self-lubricating tool as described in Example 1, except that the tool material is ceramic, and its preparation method is as follows:
[0026] 1. Using laser processing technology, 4 micro-holes are machined in the knife-chip contact area of the rake face of the ceramic tool. The diameter of each micro-hole is 60μm, the micro-hole depth is 120μm, and the hole spacing is 80μm.
[0027] 2. Fill each micropore with a solid lubricant powder with a diameter of 1.0μm, the type of solid lubricant is MoS 2 .
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