CNC Machining Technology

The Process Of CNC Machining

The Process Of CNC Machining
1.Confirm the machining area and the specification of machined parts.
a)Firstly,determine what process has been used to process this workpiece before and what process will be used to process it, and then confirm the relationship between these processes.
b)The condition of the workpiece before.For example,it was a casting parts or a forgeable piece or a bar parts,and the shape,the dimension,the machining allowance of workpiece and so on.
c)What area and shape need to be machined in next process.
2.Confirm the clamping way of the workpiece and design the fixture.
Select and design the fixture according to machining area,locating basis and clamping requirement of the workpiece.Mostly CNC machine will use three-jaw self-centering chuck to clapm the workpiece.
3.Confirm the machining method.
a)Determining the process principle,generally there are first rough then essence, near then far,inside then outside,the least procedure section, the shortest tooling route and special cases for special treatment.
b)In order to improve the production efficiency and ensure the finish machining quality of parts, the rough machining process shall be arranged first during cutting, and a large amount of machining allowance before finish machining shall be removed in a short time, and the allowance uniformity requirements of finish machining shall be met as far as possible.When the roughing process is finished, the semi-finishing and finishing should be arranged after the tool change.The purpose of arranging semi-finishing is when the uniformity of the remaining allowance after rough processing can not meet the finishing requirements,it can arrange semi-finishing as a transitional process,so that the finishing allowance is small and uniform.
c)Near than far is according to the distance from the machining position to the tool.Generally,to shorten the tooling distance and reduce the idle time,we will machining the position that more closed with the tool when are rough machining.Near than far is good for turning processing,whhich are the cutting conditions can be improved and keeping the rigidity of the blank or semi-finished parts.
d)For the parts need to be machined both of the inside surface and the outside surface ,we should machining the inside before outside when we are planning because it is difficult to control the size and shape of the inner surface, the tool rigidity is correspondingly poor, the durability of the tip edge is reduced by the heat of cutting,and chip removal is difficult during machining.
The above principles are not set in stone,some special cases may require a flexible approach.For example,some workpiece must be finished after rough processing to ensure its processing accuracy and quality.


Rapid prototyping manufacturing service

The inspection design prototype is not only visible,but also touchable. Therefore,the prototype can vividly reflect the artistic creativity of the interior designer in a physical way,preventing “drawing beautifully but making it unsightly”Shortcomings.So,prototype manufacturing is indispensable in the development of new products and the deliberation of product appearance.

Check the structural design.Since the prototype is installable,the prototype can visually reflect the effectiveness of the product structure and the level of difficulty of installation,which is conducive to finding problems and solving difficulties in time.

Prevent the risk of opening the mold immediately,because the cost of mold processing is generally very high.If the structure is found to be unscientific or other problems in the process of mold opening,the damage is obvious.Prototype manufacturing can prevent such damage and reduce the risk of mold release.

Make the product launch time much earlier,because of the advancement of prototype production,you can use the prototype for product promotion before the mold is developed,and even the early sales and production preparations to occupy the market as soon as possible.

According to the manufacturing process,the prototype is divided into CNC prototype and manual prototype;

CNC prototypes are mainly produced and processed by CNC machines. According to different production equipment,they are divided into laser rapid prototyping technology and CNC prototypes.

During this period,the prototypes of laser rapid prototyping technology are mainly matched with SLA prototypes,that is,prototypes produced and processed by using the skills of laser rapid prototyping technology. In fact,it matches with other CNC prototypes:CNC prototypes.That is,the CNC machine is used to produce the processed prototype model.

Advantages of CNC prototype:The advantage of the CNC prototype is that it can accurately reflect the information content represented by the engineering drawings.The surface quality of the CNC prototype is very high, especially in the middle and later stages of production and processing.The parts need to be painted.Therefore,CNC prototype manufacturing has increasingly become the mainstream of the prototype manufacturing industry.

If you want the prototype model to be close to the finished product and to detect the actual effect of the appearance,you must make a prototype model.After the prototype model is completed,it must be polished. What is the polishing of the prototype model?

Prototype model polishing is to eliminate burrs,oily dust on the surface of the part or the surface of the material,reduce the surface roughness of the surface of the product,and improve the adhesion of the coating after polishing the old paint film.Prototype model polishing can be divided into traditional manual polishing and modern polishing.

After a prototype part is CNC processed,its surface will inevitably cause many burrs and knife marks.At this time,it is necessary to manually solve this problem manually.Generally,people will choose sandpaper for sanding,or sanding and polishing.The basic appearance solutions include sanding,sandblasting,sanding and polishing,coloring,silk screen ink,and electroplating.

As a professional manufacturer,we have the capabilities to produce the finest Visual Design Models,Full-functional Engineering Prototypes or Low volume production runs that allow you to proof your designs thoroughly,and help you to focus on key elements of product development.

If you need any help,please feel free to contact us!


CNC Milling Machining Technology

CNC Milling Machining Technology
The process of CNC machining have much impact on the quality of the product that produced by CNC machining,and the CNC machine play an important role in the CNC machining ptocess.
Comparing with the normal machine,the CNC machine have some characteristics as below:
A,It has strong adaptability to the processing object, adapt to the characteristics of mold and other single-piece production,and provides a suitable processing method for mold manufacturing;
B,It can be used in prototype production or small batch production.
C,The parts made by CNC milling have high precision and stable processing quality.Generally,for metal parts,the precision can meet 0.01-0.1mm.When processing the same batch of parts on the same machine tool and under the same processing conditions, using the same tool and processing program, the tool path is exactly the same, so the consistency of parts is good and the quality is stable.
D,The tool of CNC machine can move in multiple coordinates and process parts with complex shapes.
E,If customer need to change the shape or structure of the machined parts, generally we only need to change the program,which can save production preparation time;
F,The CNC machine has high precision and high rigidity, so that we can choose our favorable processing material dosage,which are more productivity.
G,It is conducive to the modernization of production management. CNC machine tools use digital information and standard code to process and transmit information, and use computer control methods, which lays a foundation for the integration of computer-aided design, manufacturing and management
H,Processing parts on a CNC machine tool mainly depends on the processing program. It is different from an ordinary machine tool. It does not need to be manufactured, many molds and fixtures are replaced, and the machine tool does not need to be re-adjusted frequently. Therefore, the CNC machine tool is suitable for the occasions where the processed parts are frequently replaced, that is, it is suitable for the production of single-piece, small-batch products and the development of new products, thereby shortening the production preparation cycle and saving a lot of process equipment costs.
I,CNC machine require more higher quality requirements for operators and higher technical requirements for maintenance personnel;
E-make are professional in CNC milling machining years,if you have project need to make with metal,plastic,wood or Macro by CNC milling,please don’t hestate to contact us.

CNC turning machining Service

CNC turning is one of the most basic and most commonly used cutting processing methods.For most work pieces with revolving surfaces,it can be processed by CNC turning machine,such as inner and outer cylindrical surfaces,inner and outer tapered surfaces,end surfaces, grooves,threads,and rotary forming surfaces, etc. .
With the development of modern technology,there are more and more high-strength and high-hardness engineering materials.Traditional CNC turning machine has been unable to meet or realize the processing requirements of certain high-strength and high-hardness materials, while modern hard cnc turning technology can Make it possible and obtain significant benefits in production.The following is a brief introduction to the characteristics of CNC turning machining:
(1)CNC turning machining efficiency is high:
CNC turning uses large cutting depth and high work piece speed,and its removal rate is usually several times that of CNC grinding.CNC lathes can complete various surface machining in one clamping process,while grinding requires multiple installations,so the auxiliary time of CNC turning machining is shorter,and the position accuracy of each processing surface will be higher.
(2)The cost of equipment investment is low.Under the same productivity, the investment of a lathe machine is obviously better than that of a grinder,and the cost of its auxiliary system is also low.In the production of small batches of parts, CNC turning does not require special equipment, and the processing of large quantities of high-precision parts requires high rigidity, positioning accuracy, and repeat positioning accuracy for CNC machine tools.
(3)The lathe suitable for small batch flexible production is a flexible processing method with a wide range of processing.The lathe is easy to operate and the turning fixture is fast.Compared with grinding,hard turning is more suitable for the requirements of flexible production.
(4)Hard CNC turning can obtain better overall machining accuracy.
(5)CNC turning machining surface quality is excellent,processing roundness is accurate,and can ensure high position accuracy on the processing surface,Also will not produce burns and cracks during the cutting process,and most of the heat generated during the processing of the parts will be taken away by the cutting oil.
From the perspective of processing technology and programming, five-axis CNC machine tools have the following advantages in the processing of complex inclined surfaces:
1.Improve processing quality and improve efficiency.
2.Expand the processing technology category.
3.To achieve a new direction of compound development trend.
The E-make team has more than 30 years of combined experience in prototype machining,CNC manufacturing.And has a high-level technological group of 25 peoples.The processing quality of the rapid manufacturing is stable,the processing precision is high,and the appearance is exquisite.If you need any help,please feel free to contact us.