Carolyn

Aluminum alloy non-standard parts processing, also known as CNC machining, car, milling, planing, drilling, grinding and other general manufacturing process production of non-standard mold parts, fitter and replacement, then assembled into all kinds of abrasive, high accuracy requirement of non-standard mold parts, need to use titanium machining parts precision machine tool for processing.
In order to make more automation non-standard mold parts, reduce the work bench and replacement, need to adopt numerical control machine tool processing mould parts. Manufacturing process can separate rough machining and finish machining.
After rough machining, non-standard parts for heat treatment, cutting stress and residual heat will be released in full, and then to carry on the fine processing, aluminum will largely improve the quality of aluminum alloy of non-standard parts.
Non-standard parts rough and finish machining advantage: stress produced by heat treatment to eliminate rough machining, in order to reduce the stress on the quality of the finish machining, improve the machining accuracy and surface quality.
CNC numerical control machining is a kind of using computer programming management to carry out the processing automation technology and the machinery and equipment. The application of CNC machine tool processing to the deep draw stamping commodity parts what are the benefits? Introduce a few simple details below. Machine series, general processing technical effect is relatively stable, can be processing service station and core or pillar type, vertical milling machining core, improve CNC machining processing using the category and solving ability.
CNC blade damage warning: in order to better ensure the CNC machine tool processing quality, chose a variety of technical inspection way, inspection CNC blade damage, destruction and alarm immediately.
Tool life management methods: unified management, according to the location, improve CNC machining commodity production process efficiency. Machine load power maintenance: according to China's urbanization research company to carry out the manufacturing process of load set different degree and load to the preset value, the machine can use the automatic power, professional and technical personnel for CNC machine tools to perform key damage ecological environment protection effect.
Now each of aluminium alloy shell with high quality requirements, the diversity of products during the whole process of processing must summarize out aluminum alloy shell should pay special attention to the preparation of machining, so when using all need to do well the preparation work?
First to plan ahead for the processing of CNC blade, then determine the method of aluminum alloy shell clip outfit, to give to the engineering drawings and aluminum alloy shell stamping mould material picture to carry out metal stamping parts the verification, determine the specifications of the aluminum alloy shell deformation, and its appearance is maintaining aluminum alloy shell surface cleaning, to ensure that no iron pin, oil stain, dust, write aluminum alloy shell processing procedure process, pay attention to the processing of the position of the blade with processing will meet jig. Calibration aluminum alloy shell jig, after calibration is necessary to carry out, ensure that during the whole process of processing is not easy to produce aluminum shell wrong move.

The characteristics of stamping process
(1) stamping can get complicated shape, complete artifacts with other processing methods.
(2) the high material utilization, workpiece light weight, good rigidity, high strength, low energy-consuming stamping process.
(3) the intensity of labor is low non standard fasteners and easy to realize mechanization and automation.
(4) used in stamping mould is generally complicated, long period and too high investment.
Metal stamping process
Die is to make the deformation of sheet metal separation or tool, it consists of two parts, upper die and lower die. According to the punching die structure dividing process basically can be divided into simple punching, stamping and compound stamping consecutive 3 kinds.
(1) simple stamping is completed in a punch stroke only a process of stamping process. Is a simple die blanking and punching.
(2) continuous punch is a punch stroke, in the mold in different parts of the complete collection of stamping process at the same time, every time send into distance is controlled by blocking pin.
(3) compound stamping is in a stroke, on the same part in the mold and stamping process that complete number. In composite is the biggest characteristic of stamping mould has a convex concave die, compound die is suitable for large batch, high precision stamping parts.
Metal stamping parts of material selection
Common sheet metal stamping for low titanium alloy, magnesium alloy, carbon steel, stainless steel, aluminum, copper and its alloys, such as their high plastic deformation resistance is low, suitable for metal stamping process.
(1) copper, aluminum and its alloys because of Steel investment casting its good extensibility, and conductive performance is excellent, so this type of stamping process often was widely used as electrical equipment components.
(2) carbon steel and stainless steel stamping process is often used in the manufacture of equipment for shell, the structure components, cabinet, etc., but because of its strong stiffness stamping oil is usually used to improve the process.
(3) titanium alloy stamping is mainly used for large equipment, aircraft, ships and satellites required weight small scenes of high strength, high technology difficulty so when making stamping dedicated stamping oil must be used to improve the level of technology.
The selection of metal stamping oil method
Stamping oil played a key role in the stamping process, good socket screw plug cooling performance and extreme pressure antiwear performance for improve the service life of die and workpiece precision have a qualitative leap. According to the different workpiece materials, stamping oil in use at the same time as the emphasis of the performance is different.
(1) silicon steel plate is relatively easy to die cutting materials, general to workpiece finished product easy to clean, on the premise of preventing the cutting burr can choose stamping oil of low viscosity.
(2) carbon steel when choosing stamping oil according to the technological difficulty level and method for oil and skim conditions to determine the better viscosity.
(3) because of galvanized steel sheet and chlorine additive can Stainless steel foundry produce chemical reaction, so the galvanized steel sheet should be paid attention to when choosing stamping oil type chlorine stamping oil white rust problem can occur, and using sulfur type punching oil can avoid rust problem, but should skim as soon as possible after stamping.
(4) stainless steel plate is prone to hardening of the material, requires the use of high oil film strength and good sintering resistance tensile oil. Generally use stamping oil containing sulfur chloride compound additive, while guarantee the extreme pressure performance, avoid artifacts appear problems such as burrs and rupture.

Stamping is not only to satisfy the requirements of the design of materials used, should also meet the requirement of stamping process and subsequent process requirement. Common sheet metal stamping car radiator cap for low titanium alloy, carbon steel, stainless steel, aluminum, copper and its alloy, etc. (1) copper, aluminum and its alloys because of its good extensibility, and conductive performance is excellent, so this type of stamping process often was widely used as the equipment of the components.
(2) carbon steel and stainless steel stamping process is often used in the manufacture of equipment for shell, the structure components, cabinet, etc., but because of its strong stiffness stamping oil is usually used to improve the process.
(3) titanium alloy stamping is mainly used for large equipment, such as aircraft, ships required weight small parts high strength, high technology difficulty so when making titanium alloy stamping dedicated stamping oil must be used to improve the process.
The requirement of stamping process
(1) in order to meet the requirements of the precision of the stamping parts, after stamping process is needed to determine number of process, because it not only with material nature, stretching factors, such as DIN screw plug height, number of deep drawing step will involve drawing diameter, the thickness of the material, etc. (2) on the precision requirement of the stamping parts, the complexity of the number of process mainly depends on its shape, so we need according to the number of the bending Angle, bending direction to determine factors such as comprehensive consideration.
(3) when stamping has reached the requirement of precision, fine, fine degree becomes the new technology of artifact standard. When pressing the cross section quality and dimensional accuracy is high, can directly use fine blanking process, to obtain the fine stamping parts.
The influencing factors of stamping
(1) better than alloy, pure metal material deformation of impurity elements usually cause embrittlement, all kinds of alloys have different effects. (2) metal than single multiphase deformation is good, the second Magnetic Drain Plug phase, the properties of the shape, size and number of different impact on the deformation. Deformation temperature (3) the shearing process technology, with the increase of temperature deformation also will increase, but the increase is not a simple straight line up.
(4) rate factors ultimately determines the change of the metal deformation.
Bearing (5) in the stress state on the greater the number, the more stress value when the deformation of the metal, the better.

In order to improve the quality of mechanical parts processing, need to find what is the main factor of machining error, this is the key, and then corresponding measures are needed to reduce or control the occurrence of these factors, then from shenzhen to introduce six methods of improving the quality of mechanical parts processing:
A grouping method, error: this method will hair bad or process on the machining dimensions measured according to the error size into n groups; According to the error of each range respectively after adjusting the die cast light housing position of the tool relative to the workpiece, can let each workpiece size range dispersion center, can let the size of the batch workpiece scattered greatly narrowed down.
Error compensation method: this method is to produce a new kind of original error, the offset in the original process system of original error, so as to reduce machining error, the purpose of the machining accuracy.
Three, the error transfer method: this method is essentially the process system of geometric error, mechanical deformation and thermal deformation transfer to does not affect the direction of the machining accuracy. For example, or with a transposition of multistep processes or the transfer tool post processing process, the degree, error transfer entrepreneurs will directly affect the parts on the surface machining accuracy.
Four, error homogenization method: this method using surface with close ties between each other, each other, or be processed using each other. It can make the local greater error is processing affect the entire surface evenly, make to the workpiece surface machining error is relatively uniform, thus the workpiece machining accuracy is greatly improved.
Five, on-site processing method: in the processing and equipment timing relationship between involves some precision parts, is quite complicated. If blindly raise the accuracy of the parts themselves sometimes difficult or even impossible, not only with local processing can solve this problem. Main points of the on-site processing hair: make sure what kind of position relations alloy die casting between parts, in this kind of position on the use of a part loaded on cutting tool for processing a part.
Six, directly reduce error method: this method is widely used in the production of a basic method. The law is on to find out the main original error factors affecting the machining accuracy, try to directly to eliminate or reduce.
Scientific arrangement of the production process can improve the product quality and efficiency of non-standard parts processing automation, grasp the production process, can improve the efficiency of CNC machining.
Nc lathe programming is basic on CNC machining, appropriate application of original programming method, combining the process and automation to reduce the error in nc machine tools, familiar with source program, improve the rate of programming, simple processing carved software.
Adjust well in advance of CNC lathe and jig, workpiece CNC blade relative CNC machining parts position to get the required specifications, using high precision roller bearing. General conditions, the workpiece is first accurate positioning and clamping. But in view of the plastic deformation of the workpiece, the clamping workpiece deformation. So in view of the plastic deformation of the workpiece, after first clamping precision positioning, define the optional activity.

CNC machining, often referred to as CNC precision machining, CNC lathe, CNC milling machine, CNC machining boring and milling machine, etc. It is a kind of new processing technology, its main job is processing program, the original manual work into computer programming.
When the numerical control system is activated, the die casting parts required processing size be programmed into the software, and assigned to the corresponding tools and machines, they are the size of the specified tasks like a robot. In the numerical control programming, the code generator usually assume mechanism in the digital system is perfect. Despite the possibility of error, but when the numerical control machine were instructed to multiple direction cutting at the same time, that will be more likely. Cutting tools in numerical control system of placement consists of a series called parts program overview of input. The advantages of CNC CNC machining:
Number of (1) a substantial reduction in tooling, processing complicated shape parts does not need complex tooling. To change the shape and size of the parts, only need to modify parts processing procedure, suitable for the development of new products and upgrading.
(2) stable machining quality, high machining accuracy, high repeat precision, satisfy the processing requirements.
(3) in the case of many varieties, small batch Investment casting parts production, high production efficiency, can reduce the production preparation, machine tool adjustment and process the test of time, and reduce the cutting time by using the cutting quantity.
Conventional methods can be processed
(4) to the complexity of surface processing, processing and some even can observe the machining parts.
CNC machine tools is a kind of using computer to adjust, is processing parts type variety, large quantities of small, desultorily, precision problem important way. We should pay attention to the following problems after processing, to ensure that the machine tool and employee safety.
A: after processing is to remove waste, washing machine, maintain internal natural environment cleaning of machine tools and machine tool, refer to the inspection of oil in the machine tool slide rail rub board, if there is damage to immediately moved around.
2: after processing is to query with the condition of the cooling fluid, grease immediately and ensure enough grease and coolant. Close the actual operation on the control panel power and total power.
Three: processing ensure workers safety during the whole process, must after clamping workpiece and tool, the next step work. At work, it is strictly prohibited within the machine tool work plan on halfway adjust cutting tool and machining workpiece, the technician can be carried out only after shutdown conversion or adjust the cutting tool and workpiece.
Four: should be cleaning the machine after processing to surrounding environment, keep clean, to pull the tailstock and the plate to the end of a machine tool, and shut off the power. Machine tool on the safety die casting parts protective equipment, the technician is literally disassembling and conversion, Five: after processing of machine parts and tooling fixture properly stored, keep intact, worn out or destroyed to fill immediately.
Six: machine tool if any abnormal situation, should be immediately shut down, maintenance on the spot, circular machine maintenance management, the technician it is forbidden to change main parameters of the machine.

Mould is the main process equipment, metal stamping processing surface quality of stamping parts, size tolerance, productivity and economic benefit and reasonable die structure and its design is very big, in the manner of the combination of the metal stamping process has simple model of the single process, and process.
Set workpiece stamping process, such as dispersion and concentration of processing is a complicated problem, it depends on the bulk of the workpiece shape, structure, quality, process characteristics, etc., for usually mass-produced metal stamping parts automobile stampings, should take process as concentrated solution, adopting compound stamping progressive die, or to both increase productivity, and can achieve safety in production.
Stamping oil played a key role in the stamping process, good cooling performance and extreme pressure antiwear performance for improve the service life of die and workpiece precision have a qualitative leap. According to the different workpiece materials, stamping oil in use at the same time as the emphasis of the performance is different.
(1) silicon steel plate is relatively easy to die cutting materials, generally for the workpiece cleaning, on the premise of preventing the cutting burr can choose stamping oil of low viscosity.
(2) carbon steel when choosing stamping oil should be according to the technological difficulty level and to stretching method and skim to better viscosity of oil.
(3) because of galvanized steel sheet and chlorine additive can produce chemical reaction, so the galvanized steel sheet should be paid attention to when choosing stamping oil type chlorine stamping oil white deep draw stamping rust problem can occur, and using yida bohai embellish type sulfur stamping oil can avoid rust problem, but should skim as soon as possible after stamping.
(4) stainless steel plate is prone to hardening of the material, requires the use of high oil film strength, resistance to sintering stretch oil. Generally use stamping oil containing sulfur chloride compound additive, while guarantee the extreme pressure performance, avoid artifacts appear problems such as burrs and rupture.
According to the nature of the stamping process to be completed, and a variety of stamping equipment can force characteristics, think about all the deforming force required for stamping and die shut height and outline the size of the main factors, combined with existing equipment situation to reasonably select equipment type and tonnage. In accordance with the simple structure to divide continuous stamping stamping press, punch press and three kinds of compound stamping punch.
(1) simple stamping press
In a punch stroke only completed a process of stamping process. Is a simple die blanking and punching.
(2) continuous stamping press
Punch stroke at a time, in the mold in different parts of the complete collection of stamping process at the same time, every time send into distance is controlled by blocking pin.
(3) the compound stamping punch
In a stroke in the mold on the same parts at the same time complete stamping process that number. In composite is car radiator cap the biggest characteristic of stamping mould has a convex concave die, compound die is suitable for large batch, high precision stamping parts.

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