The glass drill in the ordinary electric drill, with fingers on the switch selection pressure, lower speed, while drilling to drilling bit side spray can. Not to be drilled hole edge collapse, the first from the side drilled a part, and then turned to drill through. According to the use of glass bit classification
(1). The center drill: generally used for drilling before hitting the center point, the front end conical surface of 60 °, 75 °, 90 °, lathe work for tailstock support, holding should use 60 ° center drill with the lathe tailstock top heart 60 ° phase.
(2). Hemp flowers drills: use a bit the most extensive for industrial manufacturing, we generally use the drill bit is Hemp flowers.
(3). Super hard bit: the drill body front end or all made of hard alloy cutting tool material, used in drilling materials processing.
(4). Drill hole: drill two holes, cutting agent through the orifice to the cutting edge part, to take away heat and chip, use this bit general job rotation, and bit static
(5). The deep hole drill bit used for drilling glass: the earliest stone barrel and ensure processing, also known as the gun drill. Deep hole drill has groove, resection of 1/4 parts in a circular tube to produce edge chip
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Development of metal cutting technology tend to talkFrom the development history of the tool, from late nineteenth Century to mid twentieth Century, tool materials with high speed steel as the main re
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Matters needing attention in the process of using diamond grinding wheelThe side grindingIn daily use grinder, we can often find kinds of grinding wheel in different varieties, some operators are not
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Diamond grinding wheel due to its excellent grinding performance, widely used in all kinds of high performance, precision and ultra precision grinding of hard and brittle materials, but because the di