Grinding
Flat surface grinding:
Processing dimensions: L1000mm, H 400mm, W 400mm
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Round grinding:
Processing dimensions: Dmax 200mm, Lmax700mm
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Internal grinding:
Processing dimensions: D150mm, L 300mm
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Internal grinding of metal holes
When drilling any round hole in the steel, a metal finish must be made. This is especially needed in the automotive industry, as well as in the formation of hollow cylindrical structures such as bearings. It eliminates the shortcomings of primary processing, casting, cutting, as well as reaches the required size.
The workpiece is mounted in a static position, and the tool has two types of feed - longitudinal and transverse, that is, the abrasive disc can rotate inside the part, as well as be moved back and forth. Sometimes the cylindrical polished metal itself can rotate. In this case, the process is faster and more efficient.
Feature - high coefficient of friction. Continuous operation requires a constant or intermittent supply of coolant and lubricant.
Surface grinding works in Rezekne
Our company performs metal surface grinding works.
Modern high-tech equipment is used for the work.
We are 100% responsible for the quality, accuracy and timeliness of our products.
Surface grinding features on metal
Surface grinding - this material removal is used for surface treatment and finishing of metal blanks. Surface grinding reduces the roughness of the products and achieves the most accurate part size.
Surface grinding is used after many machining operations, such as metal milling, turning .
Metalworking in surface grinding machines allows to reach the level of surface cleanliness up to 8-10 . Grade . It is comparable to a roughness index of 0.63 to 0.16 micrometers according to standard 2789-73.
If additional equipment is installed on the grinding machine, it will be possible not only to perform surface grinding work, but also to process shaped surfaces and conical parts.
Grinding of parts is performed with a grinding wheel - its peripheral part or end.
The working speed of the surface grinding depends directly on the speed at which the grinding wheel rotates.
Grinding with the peripheral side of the grinding wheel is the gentlest and finest type of surface treatment that does not form microcracks. In this way, parts are ground with a flat, shaped surface, profile grooves.
Important facts:
- The grains on the tool are placed randomly and with different cutting edges, this helps to achieve optimal roughness at the exit.
- It also produces a lot of heat - the temperature at the point of contact reaches thousands of degrees.
- If no lubricating fluid is supplied, thermal effects can impair the physical properties of the metal.
How not to recalculate speed
The main parameter on which the selected speed mode depends is the material. Let's look at the table:
| Recycled material
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Linear speed of circles, m / s
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| grinding
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polishing
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| Gold, aluminum, lead, tin and their alloys
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10 - 20
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18 - 25
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| Copper, brass, silver, bronze
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13 - 18
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20 - 30
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| Stainless steel
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15 - 25
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25 - 35
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