CNC turning is very similar to that of conventional lathes
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Posted by Moorsel Bas - Filed in Arts & Culture - 748 views
The machining process for CNC CNC milling services is very similar to that of conventional lathes, with the exception that, because CNC is a clamping process, all CNC turn machining processes are completed continuously and automatically, so the following considerations should be taken into account.
When it comes to high-efficiency metal cutting, the material being processed, the cutting tools being used, and the cutting conditions are the three most important factors to consider. These considerations influence the processing time, tool life, and processing quality, among other things. In order to achieve the most cost-effective and efficient processing method possible, a reasonable selection of cutting conditions must be made.
Cutting conditions are made up of three components: cutting speed, feed rate, and cutting depth (in millimeters). Cutting conditions are composed of three elements, each of which is directly responsible for tool damage. As temperature of the tool tip rises, the cutting speed increases, resulting in mechanical wear, chemical wear, and thermal wear on the cutting tool. With an increase in cutting speed, the tool life will be reduced by a factor of two, according to the manufacturer.
Only within a very narrow range of feed conditions is there a relationship between the wear on the back of the tool and the tool's wear rate. The feed speed, on the other hand, is extremely fast, and the cutting temperature is extremely high, resulting in significant back wear. In comparison to the cutting speed, it has a less significant impact on the tool. Cutting depth has less of an impact on the tool than cutting speed and feed rate; however, when cutting at a shallow depth of cut, the hardened layer of the cutting material will have an impact on the tool's life because it is more brittle.
According to the hardness, cutting state, material type, feed amount, cutting depth, and other factors, such as the hardness, the user should select the appropriate cutting speed for the job.
When determining the most appropriate processing conditions, these considerations are taken into account. Optimal conditions are those that result in regular, stable wear and long-term durability.
In practice, however, factors such as tool wear, changes in the size of the machined part, surface quality, cutting noise, and machining heat all have an impact on the choice of tool life. Whenever possible, research should be conducted in accordance with the current situation in order to determine the optimal processing conditions. When processing materials that are difficult to process, such as stainless steel and heat-resistant alloys, blades with good rigidity or coolant can be used to increase productivity.
2. Appropriate Instrumentation and Equipment Selection
In order to meet the demands of large back-grabbing and large feed that come with rough CNC turn machining, you should select a tool that has high strength and durability to meet those demands.
To meet the requirements for machining accuracy and reliability, finish CNC milling services tools with high precision and long service life should be utilized.
In order to reduce tool change times and make tool setting more convenient, the use of machine-clamped tools and machine-clamped blades should be encouraged to the greatest extent possible.
3. Choosing Fixtures at a Reasonably Low Cost
1) Whenever possible, clamp the workpiece with general fixtures rather than special fixtures to keep it from moving.
2) The positioning datums of the parts should be the same in order to reduce the positioning error between them, as shown in Figure 2.
4. Determine the most efficient method of processing.
While the CNC machine tool is processing the part, it is referring to the movement track and direction of the tool in relation to it. This is referred to as the processing route.
One of the most important requirements is that it be able to meet or exceed the requirements for processing accuracy and surface roughness, among others.
2) Make every effort to reduce the length of the processing route to the greatest extent possible in order to reduce the amount of time the tool is inactive
The fifth point to consider is the relationship between the processing route and the processing allowance.
Because the numerical control lathe has not yet achieved its general purpose, the excess margin on the blank, in particular the margin containing the forging and casting hard skin layer, should be placed on an ordinary lathe for processing at this point. If you are going to be processing with a CNC lathe, you must pay close attention to the program's ability to be configured in a flexible manner.
Location of the fixture's installation point is number six.
Right now, the tie rod serves as a connecting link between the hydraulic chuck and the hydraulic clamping cylinder, and it can be seen in the image below. The hydraulic chuck has four clamping points, which are as follows:With a moving hand, remove the nut and pull tube on the hydraulic cylinder, and then pull it out from the rear end of the spindle; second, remove the chuck fixing screw with a moving hand; and third, remove the chuck itself.
When speaking of a tool's wiper, it refers to a short blade that runs parallel to the tip of the tool and is ground in the direction of a small deflection angle behind the tool blade (as shown in the illustration). Primary and secondary cutting after cutting are the primary applications, which are equivalent to removing burrs and other scars from the finished product during the finishing process. The primary function of a finishing tool is to improve the surface roughness of the workpiece, and it is used primarily for this purpose in most situations.