Surface Treatment Requirements for CNC Processing

1. From the aspect of appearance, the surface machined by parts is free from obvious defects such as scratches and abrasions.

2. The product surface processed by NC lathe must be smooth, beautiful, no burr, no flying edge, etc.

3. In terms of quality, the machined surface of parts must meet the requirements in terms of corrosion resistance, wear resistance and hardness.

In order to meet the accuracy of parts processing, it is necessary to meet the requirements of surface technology and appearance. Computer Gong processing | Dongguan high-speed computer gong processing | Dongguan die processing | Dongguan mechanical parts processing | CNC processing of the parts we processed can not appear to be all burrs and other situations, here we introduce the surface processing requirements of CNC lathe processing:

1. From the aspect of appearance, the surface machined by parts is free from obvious defects such as scratches and abrasions.

2. The product surface processed by NC lathe must be smooth, beautiful, no burr, no flying edge, etc.

3. In terms of quality, the machined surface of parts must meet the requirements in terms of corrosion resistance, wear resistance and hardness.

1. Selection Principle of Cutting Parameters

Dongguan high-speed computer gong processing to determine the basic principles of three elements; according to cutting requirements, first determine the back feed ap, then look up the table to get the feed, and then through the table to calculate the main cutting speed U.

In many cases, we can determine the value of these three elements through empirical data.

2. Selection of Cutting Parameters

Practice has proved that the choice of reasonable cutting parameters is related to many factors, such as machine tools, cutting tools, workpieces and processes. The methods of reasonable selection of processing dosage are as follows:

When roughing, it is necessary to ensure higher production efficiency, so a larger back-feed should be chosen. For larger feed, the cutting speed U is selected as medium and low speed.

When finishing, the requirement of dimension and surface precision of parts is guaranteed. Therefore, a smaller back feed ap, a smaller feed, and a higher cutting speed U are chosen.

In rough machining, the potential of NC lathe and the cutting ability of tool should be brought into full play. When semi-finishing and finishing in CNC lathe factory, Dongguan mould processing should focus on how to ensure the quality of processing, and on this basis, try to improve productivity. Computer Gong processing | Dongguan high-speed computer gong processing | Dongguan mould processing | Dongguan machine parts processing | CNC processing CNC lathe factory in the selection of cutting parameters should ensure that the tool can be processed to complete a part or ensure that the tool durability is not less than a working class, at least not less than half the working hours. The specific numerical value of CNC lathe factory should be selected according to the specification of machine tool, tool durability and practical experience.

(1) The choice of knife size on the back. The selection of back-cutting tool quantity depends on the stiffness of machine tool, fixture, moon tool and workpiece and the power of machine tool. When the process system permits, we should select as much knife feed as possible. Except for the margin reserved for later working procedure, the remaining roughing margin is removed as soon as possible so as to minimize the number of cutters.

Usually on medium-power machine tools, the back feed of roughing is 8-10 mm (single side). The back feed of semi-finish machining in CNC lathe factory is 0.5-5 mm, and that of finish machining is 0.2-1.5 mm.

(2) The determination of feed quantity. Feed quantity refers to the direction of tool feed per unit time. CNC lathe factory moving distance. The principle of determining feed speed is that when the quality requirement of workpiece can be guaranteed, higher feed speed can be selected to improve productivity. Computer Gong processing | Dongguan high-speed computer gong processing | Dongguan die processing | Dongguan mechanical parts processing | CNC processing CNC lathe factory cutting, turning deep holes or finishing, should choose a lower feed speed. Feed speed should be adapted to spindle speed and back feed.