Monthly Archive August 12, 2019

Our factory specializes in metal parts machining for many years

Our factory specializes in metal parts machining for many years

Our factory specializes in metal parts machining for many years

Our factory specializes in metal parts machining for many years

Our factory specializes in metal parts machining for many years

Our factory specializes in metal parts machining for many years

Our factory specializes in metal parts machining for many years

Our factory specializes in metal parts machining for many years, with CNC machine center, CNC Turning lathe, forging machine, automatic lathe, grinder and other precision forging, precision machining capacity supporting equipment; is a professional precision cnc manufacturers, mechanical processing manufacturers, machinery parts machiningg manufacturers and CNC machining manufacturers. Welcome to send drawing processing and quotation.

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Skills of Keeping Strict Tolerance Requirements in CNC Precision Parts Machining

In CNC precision parts machining, there are 6 crafts that maintain strict requirements of the government. CNC machining machineries are quite fond of seeing such equipment: +/-0.005 “. Five thousandths of an inch is an exercise for any good mechanic – they might as well close their eyes and grind them. But those jobs are more demanding. Add another zero, and now you have: 0.0005 “. Holding five tenths of you is a totally different story. This is the difference between the thickness of human hair and white blood cells. When it comes to strict government service, here are some suggestions to maintain your spare parts specifications.

1. The spindle warms up to maintain critical tolerance

Running a Warm-up Program – Although this is a standard program for numerous CNC machines, there are some more troublesome things to study and run. A typical program will only preheat the spindle, which is critical for smoothing grease to prevent premature bearing wear. However, you also need to get the internal components to a stable working temperature to cope with thermal expansion. Now, if you only want to maintain strict government service on the Z axis, all of this is accurate, but if you combine the preheating of the spindle with the movement of the machine tool on the whole axis, it will help to go a step further. The machine is allowed to run for 10-20 minutes, and all parts are allowed to move to the desired temperature, which will help reduce the thermal expansion effect of milling time. In any case, at the end of the warm-up, ensure that all equipment is accurately measured and that strict military service is maintained.

Tool selection may be a factor in maintaining a strict bureaucracy. Rough processing equipment is used to carry out “rough processing” so as to reduce the wear of finishing tools and maintain accuracy.

2. Equipment Selection for Maintaining Tight Military Service

Choose your equipment carefully – when you deal with these intolerant ministries, be sure to fit your equipment. You need to ensure that you have specific equipment for roughing and finishing so that the roughing cutter can accept wear and tear, while the finishing cutter only saves one process, thus ensuring the repeatable process of creating accurate parts.

3. Strictly Tolerated Compensation

Compensation for your equipment – equipment manufacturers are not happy, so they design equipment a little tolerant. They know that if you use their equipment to do something, you’ll be even happier if its reduced performance comes out of too big a size instead of too big a size. It’s like shaving: you might as well take a rest, but you can’t put it away. Knowing this, you need to make sure that the first thing you do when configuring an accurate job is to dial your essential device diameter. You may as well finish it in a variety of ways, but my preferred way is to milling a feature, and then use accurate equipment to verify the size. Easy – If you insert a 0.236-inch tool into a 0.250-inch hole, only a 0.248-inch measuring pin can be inserted, then your tool size will be reduced by 0.001 inches (because the size of each side can not be small, so use half value).

4. Maintaining the Temperature of Tight Yards

Thermal stability – This is one of the most important things on the list, because it can make a huge difference and you may not even notice it. Please pay attention to the location of your mechanical location. Is it near the window, if so, at some time of the day, where is the sunlight mapped on it? Does the air conditioning system start in the afternoon and cool in the cabin? Does your raw material remain in a stuffy warehouse and then enter a cold 68 degree environment? It looks innocent, but it will be yours. Great difficulties have arisen in the process. The thermal expansion or contraction of milling machines or cutting materials may vary greatly during your processing. Put all of this in lock-in – maintain your machinery and materials in a temperature-controlled climate, free from sunlight, and you will reap rewards – universality in your process.

5. Maintaining the Calibration of Tight Military Service

Calibrate your equipment – when you’ve done all of the above, but all you need is * that * more rigorous, research on phone calls from manufacturers. When a machine is built, transportation falls off the truck, moves, stabilizes, and uses thousands of hours, things will be transferred and handled. This is unpredictable. Fortunately, there are several pieces of equipment, whether granite blocks or Renishaw Ballbar, that can help to loosen the mechanical reins to help maintain the corvee. We like to have a club test and adjust it as part of our annual care so that you can maintain a close relationship with mechanical accuracy. Otherwise, the implementation of these annual services can ensure that the bearing is tightened and smooth, the belt is properly tightened, and the drive motor runs well – these are important factors for accurate processing machinery.

6. Linear scales for maintaining tight government service

If all fails, scales! – If you’re still doing all the work on this list and trying, it might be time to study using linear scales to get machinery. Your typical CNC machine tool will use the drive motor encoder as the key way to track its absolute position, but this may be due to the shortcomings of ball screw or temperature difference. Linear rulers change all of this – usually installed in the factory, they consist of two key parts – rulers and reading heads. In short – scales are like machines that can read with high accuracy.

Get best CNC machining service

Get best CNC machining service from leading precision CNC machining service provider of China.CHENGCHUANG provides best services in affordable prices

Get best CNC machining service

Get best CNC machining service

Principle of division of CNC Machining

CNC Machining process can be distinguished by two different principles, i.e. machining set principle and process distribution principle.

(1) Procedure Set Principle

CNC Machining set principle refers to that no process contains as much processing content as possible, so as to reduce the total number of processes. The principle of CNC Machining set is applicable to workpiece processing on efficient special equipment and CNC machine tools. The advantages of selecting the principle of process set are: increasing the production efficiency; reducing the number of processes, reducing the process route, simplifying the production plan and organizational work; reducing the basic number, the number of manipulators and the area occupied; reducing the number of workpiece clamping, not only ensuring the mutual position accuracy between the processing surfaces, but also reducing the fixture. Number and auxiliary time of clamping workpiece. However, the investment of CNC Machining equipment and industrial equipment is large, it is difficult to adjust and maintain, and the production planning cycle is long, which is not conducive to conversion.

(2) Distribution principle of CNC Machining

The process distribution is to distribute the workpiece processing in more CNC Machining processes, and the processing content of each process is very small. CNC Machining distribution principle is applicable to simple structure of processing equipment and process equipment. The advantages of selecting the principle of process distribution are that the processing equipment and process equipment are simple to operate, easy to adjust and maintain, and easy to transfer production. It is conducive to selecting the correct cutting parameters and reducing the time of maneuvering. However, the Machining route is long, the area is large, the number of equipment and workers required is large, and the processing accuracy is greatly affected by the skill level of manipulators.

Professional at precision parts machining

professional at precision parts machining

professional at precision parts machining

 

We have more than 10 years’experience in precision CNC Machining parts, and are professional at precision parts machining, CNC processing and four-axis machining. We are familiar with the OEM technology and quality requirements of the United States and the European Union. By means of international standards, we can ensure high quality, reasonable price and prompt delivery.

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Effect of Temperature on machining of Precision Parts

As far as our precision machine parts machining industry, adequate accuracy is often a relatively intuitive reflection of the processing strength of its workshop. We know that temperature is a major factor affecting the processing accuracy. Here is a brief introduction from CHENGCHUAN.

Under the action of various heat sources (conflict heat, cutting heat, ambient temperature, thermal radiation, etc.) in the process of intrinsic machining, thermal deformation will occur when the temperature of machine tool, tool and work piece being processed changes, thus affecting the relative displacement between work piece and tool, forming processing deviation, and then affecting the processing accuracy of parts. For example, when the linear expansion coefficient of steel is 0.000012 /, the elongation of steel parts with length of 100 mm will be 1.2 um when the temperature rises by 1C. Temperature transformation not only directly affects the expansion of work piece, but also affects the accuracy of machine tool equipment.

In precision machining, higher requirements are put forward for the accuracy and stability of the work piece. According to the statistics of related materials, the processing deviation caused by thermal deformation accounts for 40%-70% of the total processing deviation in precision machining. Therefore, in order to prevent the expansion and contraction of the work piece due to the temperature transformation, the reference temperature of the constitutional environment is usually strictly controlled. The deviation boundaries of the temperature transformation are drawn up, which are 20 +0.1 and 20 +0.0.0. Constant temperature processing at 1 C still occurs.

Normally, for the constant temperature and humidity laboratory for precision processing, in order to prevent the work piece from expanding and shrinking due to the temperature change during processing and measurement, the standard temperature in the laboratory is usually strictly regulated, and the deviation boundaries of temperature change are drawn up. However, the requirement of relative humidity of air has no requirement for the accuracy of textile testing. Strict. For a national ultra-precision processing laboratory, the required temperature is 20 +0.2, while the relative humidity is 45%+5%.

In the future, with the development of society and the progress of technology, the technology of temperature control for precision parts processing will be more and more developed.

Professional CNC machining custom CNC machining manufacturers

Professional CNC machining custom CNC machining manufacturers, mainly CNC precision machining, precision mechanical parts processing, CNC CNC lathe processing, metal sheet metal processing, stainless steel processing, aluminum products processing, copper products processing, non-standard parts processing

 专业数控加工定制数控加工厂家

Reason summary of collision of CNC machining center

When making CNC workpiece, we often encounter the problem of machine collision, which not only affects the processing efficiency, but also may destroy the workpiece, more likely to form personal events. So what are the causes of the collision in the CNC machining center?

(1) Knife compensation input error is a common cause of collision.

1. Coordinate offset compensation 60 miles input error

2. Workpiece coordinates G54 and other input errors

3. Length G43 compensates for H input error or call error

4. Radius G41 compensates for D input error or call error

5, G40 or G49 or G80 input errors

(2) Error manipulation

1. Wrong Procedure

2. Installing the wrong knife

3. Error processing coordinates

4. Start-up does not return to the origin

5. Handwheel or Manual Target Error

(3) Unique procedures can also lead to crashes.

1. There will be more than one tool change in the program (it will collide with the machine because of the tool repair error)

2. The program returns to the machined cutter point (bumping plate or screw) after the cutter is removed from the mechanical reference point.

3. The program cuts diagonally at the beginning (Z appears in front of H)

4. Safety height is lower (impact plate or nut)

Do you remember the above reasons? I hope you will pay more attention in your work.

Professional engaged in CNC Turning parts

Professional engaged in CNC Turning parts

Professional engaged in CNC Turning parts

Professional engaged in CNC Turning parts, CNC Machining parts, general lathes, milling machines, grinders, wire cutting, sparks, sheet metal, welding as one of the precision processing enterprises, products involved in medical, automation, optoelectronics, communications, energy, electronic components, etc., welcome to send drawings for consultation.

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How to Select High Efficiency CNC Machining Production

At present, the varieties of CNC Machining lines are rigid automatic lines and flexible CNC Machining lines. Which kind of CNC Machining lines should be placed in CNC Machining field should be confirmed according to the change of products and output. If a large number of production lines are produced, and compared with mature production lines, then rigid lines should be chosen, because the work efficiency is high. However, if it is in small and medium batches, and the product has a positive change, then flexible line should be selected, because the production process of this line is a set of control, and it is suitable.

The other factors, such as the degree of change of CNC production line, the life cycle of products and the transformation of products, are also included in our research on the needs of choosing production line. In this respect, flexible production line is better than rigid production line, because it is more sensitive, more adaptable, and can reduce the investment crisis.

At present, there is a new method of CNC manufacturing line, which is the combination of automatic line and flexible CNC machining center, resulting in the production line, mainly automatic line. To ensure the accuracy and stability of the production line, CNC Machining is used for other processes. This production line also has certain advantages, so there will be, but also according to the nature of the situation to determine whether it is appropriate, can not be confused to use.