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.

injection moulding bg pic

Analysis of the five elements that need to be met in injection molding

Plastic molding is the process of making various forms (powders, pellets, solutions and dispersion) of plastics into products or blanks in the desired shape.The manufacturing process of most cosmetic packaging materials is mainly through the four key processes of mold molding, surface treatment,printing,and assembly.The molding process is an indispensable key part.Injection molding is a method of producing shapes for industrial products.Products usually use rubber injection molding and plastic injection molding.Injection molding can also be divided into injection molding compression method and die-casting method.Injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes. Injection molding is realized by injection molding machines and molds.

The five elements that need to be met in injection molding are:

  1. Temperature:Temperature is the first step of injection molding.Temperature can be divided into:drying temperature,material temperature,mold temperature, these are some of the most important factors.The drying temperature is to dry the polymer in advance in order to ensure the quality of the molding,to ensure that the dry and wet of the polymer are within a certain amount;The material temperature is to ensure that the polymer is plasticized normally,and the mold is filled and formed smoothly;
  2. Speed:Speed is divided into:injection speed,Melting speed,loosening and retreating speed,opening and closing mold speed,thimble forward and backward speed.The increase of the injection speed will affect the increase of the filling pressure,and the increase of the injection speed can increase the flow length,and the product quality can be uniform to ensure the quality of the product.High-speed injection is suitable for long-process products,and the size of the product is controlled at low speed;Melting speed affects plasticizing ability,plastic mold processing is an important parameter of plasticizing quality,the higher the speed,the higher the melt temperature,the stronger the plasticizing ability;
  3. Pressure:Pressure is divided into: injection pressure,holding pressure, back pressure,clamping pressure,mold protection pressure,ejection pressure.
  4. Position:The position can be divided into:mold opening position, ejection retreat stroke,metering stroke,leg loosening amount,injection stroke,and buffering amount.The mold opening position is to ensure the normal operation of the demolding parts.The effect of the ejection back stroke on the partial spring return to the ejection limit protection.The metering stroke is to ensure that there is enough plastic to fill the mold to ensure product quality.
  5. Time:The time is divided into:cooling time,sol time,drying time, cooling time,melting time,drying time,cycle,injection time,and pressure holding time.The molding of plastic shell paintingproducts requires a certain period of time.The holding time is to prevent the melt back flow and cooling shrinkage.The cooling time ensures that the product is solidified and prevents deformation;the melting time is to ensure that the glue is fully melted;the drying time is to ensure that the product does not become elongated or defective.

The E-make company has 30 years of experience in custom-made production of injection molding.The plastic injection molding products will be exquisite in appearance,reliable in quality and delivered on time.If you want to customize the high-precision injection molding products.All information from customers was kept secret,we can sign NDA with you before starting any work.If you need any help,please feel free to contact us.

sheet metal fabrication

Sheet Metal Working

Sheet Metal Working
With the characteristics of light weight, high strength, conductivity, low cost and good mass production performance,metal plate is a technology that has been widely used in electronic and electrical appliances, communication, automobile industry, medical devices and other fields. For example,it is an essential part in computer chassis, mobile phone,and so on.
The material of metal plate widely be used in electronic enterprises is SPCC,SECC,SGCC,SUS301,SUS304,etc.There are three main types of sheet metal processing: blanking, bending and stretching. Different processing technologies have different requirements for sheet metal. The selection of sheet metal also need be considered according to the shape of the product and processing technology.The following is the impact of materials on sheet metal processing technology.
a,The influence of materials on punching process.
Punching requires that the plate material should have enough plasticity to ensure the plate will not crack during machining.The soft materials such as pure aluminum,antirust aluminum, brass, red copper and mild steel have good punching performance,which can be blanked to the parts that have a smooth section and a small inclination.The quality of the hard materials is not good after punching,such as high-carbon steel,stainless steel,duralumin and ultralumin, the section unevenness is large, especially for the thick plate material.
b,, The influence of materials on bending process.
The plate materials to be bent should have sufficient plasticity and low yield limit.The plate with high plasticity is not easy to crack when bending. The plate with low yield limit and low elastic modulus has small rebound deformation after bending, and it is easy to obtain the bending shape with accurate size. Materials with good plasticity such as low carbon steel, brass and aluminum with carbon content less than 0.2% are easy to bend and form; Materials with high brittleness, such as phosphor bronze (qsn6.5 ~ 2.5), spring steel (65Mn), hard aluminum, superhard aluminum, etc., must have a large relative bending radius (R / T) during bending, otherwise they are easy to crack during bending.
c,The influence of materials on tensile process.
Sheet metal stretching, especially deep stretching, is a difficult kind of sheet metal processing technology. It not only requires the stretching depth to be as small as possible, the shape to be as simple and smooth as possible, but also requires the material to have good plasticity. Otherwise, it is very easy to cause overall distortion, local wrinkling and even tensile cracking of the parts.

rim

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

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.

Application of ABS material in 3D printing

ABS is one of the main materials for 3D printing.The reason why it can become a consumable for 3D printing is determined by its characteristics. ABS materials have heat resistance,impact resistance,low temperature resistance,chemical resistance and excellent electrical properties,Product dimension stability and other characteristics.

At present,ABS is the most stable material among 3D printing materials. It has good hot melt and impact strength,and it is also the preferred engineering plastic for fused deposition molding 3D printing process.For now,ABS is mainly pre-made into silk and powdered.The application range of ABS materials covers almost all daily necessities,engineering supplies and some mechanical supplies,and has a wide range of applications in automobiles,home appliances,consumer electronics and other fields.

Printing performance:

  1. ABS materialis quite easy to print.No matter what kind of extruder is used,the material will be extruded smoothly without worrying about clogging or solidification.However,the steps of ABS material after the extruder are a bit difficult.ABS material has the characteristic of shrinking when exposed to cold,and will partially fall off the heating plate and hang in the air,then it will be causing problems.In addition,if the height of the products that needs 3D printing is very high,the ABS material sometimes peels off the entire layer during the 3d printing process.Therefore,the heating plate cannot be omitted when ABS material is used for 3d printing.
  2. ABS material is relatively flexible,so it is suitable for making wearable products.

Strength:As long as 3D printing is carried out at an appropriate temperature and the layers of materials are firmly adhered,the strength of ABS will become quite high.But the ABS material is also flexible after 3D printing,even if it is under pressure,it will only bend and not break.

Odor: The biggest disadvantage of ABS material is that it produces a strong odor during 3d printing.Regardless of the material,it is recommended that you perform 3D printing in a well-ventilated room. This is especially true when using ABS materials.

ABS-M30 is a production-grade plastic that is specially designed for 3D printing with FDM technology.This strong and common material helps to test and repeat the work more frequently,Ultimately reduce risks and create better products,speeding up the time to market.

Due to performance reasons and the price is more suitable,3d printing ABS material it is very suitable for conceptual models and parts with medium requirements, including functional prototypes.The colors of ABS material are natural color,white,black,dark gray,red and blue.In addition,the color can be customized when 3d printing.

The E-make company is a rapid prototyping manufacturer.

Our factory provides high quantity 3D printing、Vacuum casting service、CNC machining service and injection molding service.

All information from customers was kept secret,we can sign NDA with customer before starting any work.

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

Car rear light prototype manufacturing

Car rear light prototype manufacturing

Name:car rear light prototype

 

Color:can custom any color according customer requirements.

 

Material:PC,TransparentPMMA,ABS,POM

 

Size:The dimensions of 3D drawings provided by customers shall prevail

Time:8days

 

Types:prototype of auto parts

 

Characteristics of prototype:

 

1,Clear lines,relying on imported equipment and unique process design, precision machining makes the line stripe path and outline more clear and smooth.

 

2,High efficient,strong strength.The company focuses on prototype processing for 12 years,we have accumulated a lot of relevant experience and talents,can efficiently meet customer requirements ,Meet customer requirements under the premise of faster order completion.

 

3,Higher precision, imported equipment, precision tolerance ±0.05mm.

 

4,Fast efficiency and short processing time.

 

Excellent talents, a wider range of processing size.

Advantage:

 1,High quality and reasonable price

 2,Machining, drawing or sample.

3,Can according 3D drawings and 2d drawings。

4,3D drawing file format :IGS/X-T/PRT/STP /STL is all available.

5,Custom samples and technical specifications are welcome。

Automobile rear light hand plate model can be carried out:

1,CNC machining

2,polishing

3,painting

4, electroplating

5,assemble

E-make prototype advantages and strength characteristics:

1,Quote in 1 hour, delivery in 2 working days.

2,Our company has SLS and DLP from Germany, SLA rapid prototyping equipment from America, Stratasys 3D printer from America, metal powder 3D printer from America, and ProJet860 full-color 3D printing equipment from America. Taiwan imported CNC machining center 10 sets, vacuum casting, low pressure perfusion.

3,Prototype appearance can be spray paint, electroplating, wire drawing, screen printing.

4,We can make 3D printing prototype, plastic prototype, hardware prototypr, function prototype, appearance prototype, transparent prototype, high temperature resistant prototype, coffee machine prototype, kitchen appliance hand board, auto parts hand board and so on.

5,Packing: inner packaging: pearl cotton, transparent bag. Outer package: carton.

 

If you need do auto parts prototype,please feel free to contact us .

 

https://e-make.co/

E-mail:amy@e-make.co

CNC Machining Metal Parts

Precision 5 Aixs CNC Machining

Precision 5 Aixs CNC Machining
With the growing maturity of domestic numerical control technology,recently five CNC machining center has been more and more widely used in various fields.Precision 5 axis cnc machining is the important way to solve the problem when we need to make the mechanical product with complex structure and require high quality and high tolerance.For example,the aerospace,military industries,the car product and the mould parts will need the 5 aixs machine to meet the high efficiency, high quality processing.
About 5 axis machining,there are also a problem regarding True and false five-axis machine.The biggest difference between them is the RTCP functionality.
RTCP,we also call it as Rotated Tool Center Point,which is a tool point following function.In five-axis machining, when the tool nose point trajectory and the posture between the tool and the workpiece are pursued, additional movement of the tool nose point occurs due to the rotary motion. The control point of the numerical control system often does not coincide with the tool tip point, so the numerical control system must automatically correct the control point to ensure that the tool tip point moves according to the established trajectory of the command.This technology is also known as TCPM,TCPC,or RPCP functionality.
In the production machining,three axis processing equipment is more common used.There are vertical, horizontal and gantry and other forms.Common processing methods are end milling cutter edge processing, edge processing.Ball head knife copying processing and so on.However,both of 3 axis machine and 5 axis machine have a common feature,that is,in the process of machining,the direction of the knife axis always remains the same.
Compare to the 3 axis machine,the advantage of 5 axis CNC machine is as below.
1.It can maintain the best cutting state of the tool and improve the cutting conditions.
2.It can effectively avoid tool interference.
3.It can reduce the clamping times because one clamping can complete the processing of five sides.
4.It can Improve processing quality and efficiency.
5.It can shorten the production process chain and simplify production management
The more complex of the mechanical parts, the greater its advantage over traditional decentralized production methods.But the disadvantage of the 5 axis machined is the tool control,the numerical control system,the CAM programming and post-processing are much more complex than 3 axis.
Machining the workpieces by 3 axis machine or 5 aixs machine,which one is better is depends on how complex the shape of the product is,and how much precision the product requires.If just for making a parts with simple shape,of course 3 axis machine is a better choice,and more cost-effective.