What type of glass can not be cut?

    There are many common glass products in life, most of which are processed by glass machinery. For example, glass water cups, glass pots and glass measuring cylinders. Most of these containers are made of borosilicate glass tube materials, which are first cut to length by a tube cutter, followed by a series of processes such as bottom sealing, scorching, annealing, etc. So why can these glass tubes be cut at will? This is because borosilicate glass has high chemical stability, high hardness, high wear resistance and good mechanical properties, which enable the glass to withstand the stress during the cutting process and not easy to break.
    But in the glass industry, tempered glass cannot be cut.
    This is because the hardness of tempered glass is too high, and the laser cutting machine is difficult to provide enough energy for cutting. Even if it can be cut, it will consume a lot of time and energy, and the cutting effect is not ideal. On the other hand, during the production process of tempered glass, a compressive stress layer is formed on the surface and a tensile stress layer is formed inside by heating to near the melting point and then cooling rapidly. This stress balance makes tempered glass have high strength. Once cut, the stress balance will be destroyed, causing the glass to instantly break into small particles. All these types of glass are very special and difficult to process. But if you really need tempered glass products, we can process ordinary glass and then temper it.