To further enhance productivity, various studies focused on the economy, improving the processing technology of the stone, in addition to improve the output of the material and reduce the cost of waste, diamond manufacturers, machine tool manufacturers and tool manufacturers to increase the production capacity of the machine a lot of research and tool matching. Which a study to find out the level of the production capacity of marble processing machine. Europe now use the most efficient level of production efficiency of the granite saw only the equivalent of about 4 percent of the marble processing to achieve the level. Generally speaking, when the depth of cut less than 25mm, for processing granite is unlikely, because this will lead to a lot of heat and diamond tools overload.
By diamond manufacturers, diamond tool manufacturers, machine tool manufacturer, saw the matrix manufacturer and a research institute composed of European partners, international organizations, began to study for the stone processing technology to bring a new world plan.Focus on seeking ways to solve the problem, as well as a comprehensive evaluation of the technical, economic and environmental, as well as issues approximation. The objective of this program under the conditions of the processing system, subsystem, to meet the deep needs of the depth of cut range from 100 ~~ to 300mm. It includes a highly efficient diamond circular saw blades, as well as to provide improved lubrication system for the tool and workpiece interface, in order to ensure a long and steady work. This is a highly automated processing is a basic requirement. The research work in two stages:
A laboratory test, in order to get some basic information (material properties, cutting forces, temperature and vibration), as machine tools and tool design must improve the underlying data should reach.
2, in the first phase of data on the basis of the development of tools and machine parts (agglomeration of saw blades, lubrication and finishing systems). In the first phase, the design of this project one of the key is to use a small saw blade simulation in order to examine the processing power, the temperature in the tool and workpiece interface (grinding zone), and vibration. When using a small saw blade, the system features and industrial applications, the actual conditions of use features must match, and this is crucial. To meet this requirement, many authors have proposed a variety of cutting model, the two main variables in the system are recognized, namely, cutting speed (Vc) and the depth of cut (ae).Using these parameters and tool geometry size, you can propose a simplified model of a circular saw blade when cutting formula.
heq = aeVft / Vcλ
The use of this formula is able to reproduce the industrial applications under normal circumstances, similar conditions and force.
Deep cutting conditions, cutting temperature and cutting force measurements.
Implementation of deep sawing, small-scale laboratory tests to measure the heat generated in the cutting zone and the cutting force. This information is necessary to determine the lubrication equipment and prediction of diamond tools in large-scale production saw cutting force during processing may bear. The use of high strength of diamond, its particle size is 30/40, the number of particles per carat is 660 ± 30 tablets. Sawing First Italian granite of medium hardness, and then sawing it more difficult processing of the Indian red granite, which is one of the most difficult to cut the material. In the cutting tests, cutting depth to maintain 90mm to adjust the feeding speed, so that in the most moderate cutting the conditions 100cm2/min with the most adverse conditions 600cm2/min between change. This condition can meet a set of industrial production 380cm2/min to productivity of 1000cm2/min.Temperature measurements. As expected, with the sawing efficiency generated by the cutting temperature is rising, even at the highest speed, the cutting temperature is still below 200 ℃. Use the dynamometer to measure the processing in the normal force and tangential force to provide assistance to the development of the Saw design and the maximum size of the tool specifications. The cutting force analysis and inspection of the diamond wear process is to determine the scope of the process should work in that period. This is to maintain a uniform diamond wear and adjust the diamond is used to complete the cutting of the material required exposure to a high degree of critical.
Processing requirements of the sawing of granite deep
On the basis of information obtained in the first stage, to determine the deep sawing process specially designed processing equipment. Consider the design of diamond saw blades, and focus on examination of the following tools design requirements. Tool specifications and processing conditions must ensure that the material removal rate and diamond exposed to a high degree of match to achieve the thickness of the wear debris. Unlike the chip thickness is too small under the conditions of the deep saw the main aspects of concern is that, if the cutting parameters of phase over the chip thickness will be more than the diamond exposed to a high degree. In this case, the diamond particles show a large brittleness, will lead to insufficient clearance between the workpiece and the binder, a catastrophic failure. This will cause a catastrophic failure of France to the increase of the force, resulting in tools.The project plan on the other hand, focus on the machine stability, lubrication, power requirements, these will have to re-consider in the final assembly of the deep Saw.