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沙迪克加工条件中文沙迪克加工条件中文 Shaddick walking silk processing conditions in Chinese meaning and the size of the compensation shaddick walking silk processing conditions in Chinese meaning and the size of the compensation shaddick walking silk processing conditions in Chinese me...

沙迪克加工条件中文
沙迪克加工条件中文 Shaddick walking silk processing conditions in Chinese meaning and the size of the compensation shaddick walking silk processing conditions in Chinese meaning and the size of the compensation shaddick walking silk processing conditions in Chinese meaning and the size of the compensation shaddick walking silk processing conditions for Chinese meaning and the size of the compensation ON: discharge time, also known as the pulse width. OFF: the discharge does not take time, also known as the pulse. IP: defined by four Numbers. Right up two size of the peak current, right up the third said any super processing, zero right up the fourth saying finishing, no zero, rough machining for TM. HRP: three letters represent different meanings. "H" is a "high voltage power circuit". The larger the set value, the higher the voltage. The "R" is the "trigger circuit," the larger the set value, the smaller the impedance, the greater the energy. The "P", the "high voltage synchronous circuit", the larger the set value, the smaller the impedance, the greater the energy. MAO: the baseline parameters built to ensure the stability of the process. The "M" is defined at the time level to determine whether the processing state is stable. The "A" is determined to be stable when the processing of the "A" is determined to be stable, the output of the pulse defined by the OFF parameter, and the output change to the pulse of A parameter definition when it is unstable. The larger the set value, the wider the pulse, the lower the risk of breakage. The "O" process is determined to be stable when the processing of the "O" in M is determined, and the pulse that outputs ON the parameter definition is changed to the "O" parameter defined pulse when it is not stable. The "M" is defined as the voltage level to determine whether the processing state is stable. The process of "A" in the time of M setting is judged to be unstable, and the pulse interval of the actual output is extended automatically by the width of the width of the pulse width set by the A parameter. "O" is not defined. SV: servo reference voltage. Decide whether the wire is going forward or backward. The average voltage between the silk and the workpiece is changing when the process is processed, and its value is less than the SV, which is greater than the SV. V: the power voltage set between the wire and the workpiece is set. The larger the set value, the greater the discharge energy. SF: set the speed of the table in the process of processing. C: defines the capacity level, which is only effective when processed, and the machine must be zero when processed. The set value is big, discharge tends to settle, but exceed the limit also can make the discharge space become big, cause the surface of the electric surface rough. PIK: defines the pattern for the PIKA circuit. CTRL: set the ACW (remove part of the functionality, for optional configuration) WK: the electrode thread category. The first and second digits on the right represent the thickness of the diameter, such as 10 means 0.1 mm. The third digit on the right, 0 means brass hard wire, 1 for brass wire, 2 for steel core coating, 3 for tungsten and 4 for molybdenum wire. WT: define the wire pretension. Set the switch in the "NORMAL" state, that is, using coarse wire electrode processing, WT value is less than 30, the actual pull force is constant at 300 grams, WT = 255, the actual pull force reached a maximum of 2550 grams, WT = 31-255, the actual pull force scale up between 300 and 2550. Set the switch in the state of "THIN", that is, using fine wire electrode processing, WT value less than 15, the actual pull force is constant at 150 grams, the WT is more than 45, the actual pull force reached a maximum of 450 grams, WT = 16 to 45, the actual pull force scale up between 150 and 450. WS: wire transfer speed. When WS = 0 to 10, the constant is the slowest speed of 1 m/min, and WS = 151 to 155, which is the fastest speed of 15m/min, and WS = 11 to 150. WP: right start two Numbers to define the variable frequency speed control signal (Hertz) to control the high pressure jet strength Wire cutting machining surface quality improvement and improve the abstract: rear five coordinate nc milling processing China tool industry can catch up with the world the development of numerical control machine tool industry feature animation Yang corners turret compound machining status and market analysis of FMS machine system configuration and requirements of cutting heat and cutting temperature is the application of kingview software in the gas pressure station can grinding all kinds of complicated shape the new type of numerical control surface grinding machine the numerical control machine tool application scheme of virtual design/virtual manufacturing and how to identify manufacturing informatization "imported machinery accessories" authenticity "energy-saving pioneer" haier introduced the present situation of the screw machine CAD/CAM technology automation or perish of dry cutting: cutting the development direction of rapid prototyping technology the main function of PCBN cutting tool in the application of Inconel 718 processing distribution and development trend of China's hardware tools is a use of the jaw chuck [tags: tag] [abstract] the thorough analysis the influence edm cutting surface quality of machining various related factors, put forward to improve and enhance the cutting machining precision and surface quality of the measures and methods. 1 introduction edm wire cutting machine according to the cutting speed can be divided into two wire walking and walking silk, due to the fast walking thread cutting machine are general in processing of the workpiece surface roughness Ra = 1.25 ~ 2.5 mu m fan. [abstract] the thorough analysis the impact edm cutting surface quality of machining various related factors, put forward to improve and enhance the cutting machining precision and surface quality of the measures and methods. 1 introduction edm wire cutting machine according to the cutting speed can be divided into two wire walking and walking silk, due to the fast walking thread cutting machine are general in processing of the workpiece surface roughness Ra = 1.25 ~ 2.5 microns within the scope of the processing of the workpiece surface roughness by wire cutting machine usually can reach Ra = 0.16 mu m, slow wire cutting machine of the roundness error, linear error and size error is faster Wire cutting machine, so in the high precision parts machining, wire cutting machine has been widely applied. with wire cutting machine is adopt the method of continuous line electrode wire, wire electrode in the process of movement to finish machining, so even if the wire electrode loss, also can continuously complemented, it can improve machining precision parts. But edm wire cutting machine to work a lot of factors which influence the machining surface quality of work, especially the wire cutting machine need the relevant processing parameters were more reasonable matching, to guarantee the machining surface quality. The author in the center of shantou university in CAD/CAM use wire cutting machine made in Japan Sodick company a lot of injection mould and die wire-cutting processing, based on the analysis of the factors involved in wire-cutting processing workpiece surface quality has made some exploration and research, has accumulated a number of effective work experience, are presented as follows. 2 measures and ways to improve the wire cutting machining surface quality on the analysis of the related factors affecting the quality of wedm processing work surface before, must first understand the edm cutting processing when the loose contact between the electrode and workpiece online light pressure discharge phenomenon. Through many years observation study found: when close to flexible wire electrode and workpiece is generally thought that the discharge gap (e.g., 8 to 10 microns), does not spark discharge occurs, even when the wire electrode has been in contact with the workpiece, already can't see the gap from the microscope, often can't see the spark, only when to bend wire electrode and workpiece offset distance (a few microns to a few microns) normal spark discharge occurs. 1 microns per feed line electrode, discharge gap is not reduced by 1 mu m, but add a bit of tension between line wire electrode, add a bit of lateral compressive force while working, obviously, only wire electrode and workpiece is maintained between certain minor contact pressure to form a spark discharge. Say: in wire electrode and workpiece exist between some electrochemical film dielectric insulation, when the wire electrode and workpiece contact because its in motion, the movement of friction film dielectric insulation breakdown of thinning to be spark discharge occurs. to analysis influence wedm machining surface quality of work related factors. The force will be a major factor in the delay of the wire, since the electrode is always pushed in the opposite direction when it is being processed. Besides the above factors, the factors that directly affect the quality of linear cutting processing are personnel, equipment, materials and so on. In order to improve the quality of processing surface, can be the greatest influence from human factor, machine tools and material factors such as three aspects to consider for processing quality control method and the improved methods. 2.1 man-made factors affecting the quality of wire-cutting processing workpiece surface and improve human factors controlling and improving mainly includes the determination of processing technology and processing method of choice, this can be done through the following points: (1) the implementation of a small amount of processing for many times. For this quantity, generally determined by the processing parameters of machine tool, according to the use of Japan Sodick company working experience in manufacturing of wire cutting machine, in addition to the first processing, processing capacity is generally diminishing gradually by dozens of micron to a few microns, especially the last processing more, processing capacity should be smaller, namely a few microns, and the more workpieces surface quality, the better. Because the deformation of the material in the cutting process can effectively improve the surface quality of the machined workpiece, a small number of cutting methods should be adopted. In roughing and semi-finishing can leave when certain allowance, to compensate for material for deformation produced by the original stress balance was destroyed and the last time when finishing the required machining allowance, so that when finally finishing can obtain more satisfactory processing effect. Small with a single, multiple cutting can make the machining surface quality, cutting incomparable is easy control and improve the surface quality of machining methods and measures. (2) arrange the cutting route properly. The guiding ideology is to avoid damage to the workpiece material original balance of internal stress, prevent the workpiece material in the cutting process for under the effect of fixture, the significant deformation due to cutting route arrangement is not reasonable, the cutting surface quality decline. (3) select the cut parameters correctly. For different rough and finish machining, the wire speed, wire tension and jet pressure appropriate adjustments should be done on the basis of the parameter list, in order to ensure that processing has higher accuracy and surface quality of workpiece, can properly adjust the contour cutting machine wire speed and wire tension, while manufacturing wedm manufacturer provides the related parameters to adapt to the different cutting conditions, but due to the machining precision of workpiece materials, need and the influence of other factors, make people can't completely copy books introduce cutting conditions, and should be based on these conditions, according to the actual need to adjust accordingly. For example to 27 mm thickness of workpieces, in the same processing conditions can't find in the table of, this kind of condition, must according to the thickness of the 20 mm to 30 mm between the cutting conditions and amount of compensation to make corresponding adjustment, the main way is: the thickness of the workpiece processing close to which one you should choose it as a set of standard thickness processing thickness, while the amount of compensation according to the actual thickness of machining, and the difference between standard thickness in the table, a proportional selection. (4) processing with distance. In order to make the workpiece to achieve high accuracy and high surface quality, can use the processing, which should make the distance between nozzle and workpiece near as far as possible (about 0.05 ~ 0.10 mm), so you can avoid because of the nozzle is far from the artifacts of the amplitude too much influence and make the wire electrode machining surface quality. (5) attention to the fixed processing artifacts. When machining the workpiece is cutting its connection with parent material strength is bound to decline, at this time to prevent occur because of the impact of the process fluid makes machining deflection, because in the event of deviation, can change the cutting clearance, light person affect the workpiece surface quality, the person that weigh parts cut bad scrap, so want to find a way to fixed by machining. The control and improvement of the control and improvement of the surface quality of the surface quality of the wire cutting processing workpiece is a high-tech and high-precision machine tool, Machine tool maintenance is very important, because of the high machining precision and quality is directly based on high precision machine tool, so must be checked before each processing the working state of the machine tool, to provide the conditions for obtaining high quality machining. Note the link and the measures should be taken as follows: Wire electrode (1) long exposure to the air cannot be used for machining high precision parts, because if a wire electrode surface has been oxidized, it affects the surface quality of machining, so keep the wire electrode should be careful not to damage wire electrode packaging film, in order to avoid wire electrode contact by oxidation with air, before processing, you have to check the quality of the wire electrode. In addition, the electrode wire tension on the machining surface quality also has a great influence, require high surface quality of workpieces, should be raised as much as possible on the premise of constant wire tension wire electrode. (2) the slow-moving silk cutting machine is usually used to work with ionized water. Spark discharge must be in a certain insulation performance of the liquid medium, the insulation performance of working liquid can make after the breakdown of discharge channel compression, thus limited spark discharge within the radius of smaller channels, form the instantaneous and local high temperature to melt and gasification metal, quickly recover after the discharge and discharge gap become insulation condition. The insulation performance is too low, it will produce electrolysis without breaking through spark discharge; The insulation performance is too high, the discharge space is small, the cuttings are difficult, the cutting speed decreases. Generally resistivity should be 5 x 10 4 ~ 10 x 104 cm, must watch the show resistivity table before processing, especially the machine just starting, often found that the resistivity is beyond the scope of this, then do not be eager to processing, let the machine running for a period of time to want the resistivity to formal processing. It is necessary to improve the resistivity of the processing fluid to ensure the accuracy of the machining, and when the resistivity of water is found no more, the ion-exchange resin should be replaced. Moreover must check conditions related to the cooling fluid, check processing liquid fluid volume, still should check the filter pressure gauge, the pressure value should be in 2.0 x 13 - more than 3 Pa. When processing fluid from dirty lateral reverse flow cleaning trough, the need to replace filters, to ensure the insulation performance of processing liquid, washing performance, cooling performance is achieved. (3) the wear and tear of the conductive block must be checked. After processing 50 ~ 100h, it is necessary to consider the cutting position of the conductive block or the change of the conductive block. It is important to note: when the change of position or change of conductive block conductive block, must realigns verticality of wire electrode, so as to ensure the machining accuracy and surface quality. (4) monitor the rotation of the pulley, if the rotation is bad it should be replaced, must also carefully check damage and smudgy degree, upper and lower nozzle with a cleaning fluid to remove dirt, injury occurs should be timely replacement. It is also necessary to check the condition of the silk lining of the silk tube frequently, which can affect the smooth operation of the silk, and affect the machining accuracy. In addition, conductive block, pulley and upper and lower nozzle adverse conditions can also cause the vibration of wire electrode, can well discharge machined surface even at this moment, but because of the wire electrode vibration, processing surface is easy to produce wave or stripe, finally cause the variation of surface roughness of workpiece. (5) maintain a steady supply voltage. Instability of the power supply can cause the electrode and the workpiece to be unstable, which can cause the breakdown process to be unstable and affect the surface quality of the workpiece. 2.3 material factors affecting wire-cutting processing workpiece surface quality control and improve for machining high precision size and good surface quality of the line products, workpiece materials used must be carefully considered, this is mainly from the following several aspects: (1) due to different workpiece materials, melting point, gasification, coefficient of thermal conductivity are different, and even by the same way to add workers, quality of workpiece surface is not the same, so you must according to the actual need of surface quality of workpiece material corresponding choice. For example, to achieve high accuracy, It is necessary to choose the hard alloy material, not the stainless steel or unquenching high carbon steel, otherwise it will be difficult to meet the requirements. (2) because of the influence of the internal residual stress of workpiece materials processing, when after heat treatment of the materials for processing, because of the large area to remove metal and cut processing can make the material is damaged the balance of internal residual stress, which may affect the machining accuracy and surface quality of parts. In order to avoid these conditions, it is necessary to choose the materials that are good forging, good quenching, and the small deformation of heat. (3) in the process of processing, the parameters should be adjusted to the optimum condition to reduce the breakage. Because there is two discharge of the broken thread, the surface quality of the workpiece decreases. In addition, the sound of the machine should be listened to during processing. The sound of normal processing should be a smooth wheezed sound. It should also be noted that the spark in normal processing should be blue, not red. In addition, the normal processing, a pointer to the current meter, voltage meter machine tools should be stable or amplitude is small, the feed speed uniform and smooth, obtained is the cutting machining high precision and high quality guarantee. 3 conclusion there are many factors affecting the quality of surface wedm machining, but as long as the analysis of the system and scientific classification, can to control factor of this kind of complicated and messy and allocate, so as to improve and enhance the precision of the workpiece and the table, the workpiece surface quality of the obtained is not the same, so you must according to the actual need of surface quality of workpiece material corresponding choice. Such as: (1) to achieve high precision, it must choose carbide materials, and should not be selected stainless steel or hardening of high carbon steel and so on, otherwise it is difficult to achieve the desired requirements. (2) because of the influence of the internal residual stress of workpiece materials processing, when after heat treatment of the materials for processing, because of the large area to remove metal and cut processing can make the material is damaged the balance of internal residual stress, which may affect the machining accuracy and surface quality of parts. In order to avoid these conditions, it is necessary to choose the materials that are good forging, good quenching, and the small deformation of heat. (3) in the process of processing, the parameters should be adjusted to the optimum condition to reduce the breakage. Because there is two discharge of the broken thread, the surface quality of the workpiece decreases. In addition, the sound of the machine should be listened to during processing. The sound of normal processing should be a smooth wheezed sound. It should also be noted that the spark in normal processing should be blue, not red. In addition, the normal processing, a pointer to the current meter, voltage meter machine tools should be stable or amplitude is small, the feed speed uniform and smooth, obtained is the cutting machining high precision and high quality guarantee. 3 conclusion there are many factors affecting the quality of surface wedm machining, but as long as the analysis of the system and scientific classification, can to control factor of this kind of complicated and messy and allocate, so as to improve and enhance the precision of the workpiece and the surface quality.
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