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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much better t

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette

Elimination of Gear Backlash in CNC Machining Feed System

Elimination of Gear Backlash in CNC Machining Feed System   The transmission gear in the feed system of the CNC machining machine tool must eliminate the transmission gap between the meshing gears as much as possible, otherwise the motion will lag behind the command signal after each reversal of the feed system, which will affect the machining accuracy (accuracy) ). There are the following two common methods for CNC machining machine tools to eliminate the transmission gear gap.   1. Rigidity adjustment method   The rigid adjustment method is an adjustment method that cannot be automatically compensated for the tooth side clearance after adjustment. Therefore, the pitch tolerance and tooth thickness of the gear must be strictly controlled, otherwise the flexibility of the transmission will be affected. This adjustment method has a relatively simple structure and a better transmission rigidity.   (1) Eccentric shaft adjustment method   As shown in Figure 610, the gear 1 is mounted on th

Skilled driving skills can effectively reduce tire wear

The driving method of a car has a lot to do with tire wear. Good and skilled driving skills can effectively reduce tire wear, extend the service life of tires, and improve driving safety.
1. Do not start too hard to avoid acceleration of tread wear due to the drag of the tires and the ground; 2. When the vehicle goes downhill, you should control the appropriate speed according to the size, length and road conditions of the slope, so as to avoid or use less emergency braking To reduce tire wear;
3. Vehicle turning should be decelerated appropriately according to the conditions of the curve and the turning radius, so as not to accelerate unilateral tire wear due to inertial force and centrifugal force;
Fourth, when driving on uneven roads, one must choose the road surface to reduce the collision between the tire and the road surface to avoid damage to the parts and tires, and the other is to slow down to avoid tire bumps and strong vibration;
5. When turning, overtaking, passing through intersections, narrow roads, railway crossings, etc., you should master the appropriate speed and pay attention to the road surface, pedestrians, and vehicle dynamics, prepare for braking, reduce frequent braking, and avoid emergencies Braking, thereby reducing tire wear;
6. When driving in the highway maintenance and construction section, use the method of low speed and slow driving to choose the road to pass, so as to avoid excessive impact on the tires, or even stab or scratches;
7. Passing through muddy areas, you should choose a relatively solid and non-slip place to pass, so as to prevent tires from sinking, idling in place, and severe vibrations causing serious cuts and scratches on the tires and sidewalls; 8. Vehicles stopping and stopping during driving , Should develop the habit of sliding safely.

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