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CNC Machining Metal Parts

Aluminum CNC Machining

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Aluminum CNC machining service

Everything before this topic is prep work. CNC Machining is where the rubber meets the road. All the steps of CNC before machining are just getting ready for the machining phase of the task. A simple meaning of machining is removing material. You remove material in numerous methods to come up with the part or item.

CNC Machining can be done on countless sorts of product. As an example, plastic, steel, aluminum. Machining generally has actually greater resistances associated with it. When machining, you are trying to do something extra specific.

In machining, we use some sort of tool. This tool could be a mill, drill little bit, end mill, router little bit or various other device. There are boundless variations of devices. CNC Tooling usually costs a fair amount of cash. As soon as you invest in your tooling though, you can use it repeatedly until it breaks. If you have a large range of different devices, you will certainly be able to perform a large selection of machining kinds.

A list of usual tooling used in CNC Machines:
Drill bits
End mills
Plasma cutter
Dovetail cutter
Fly cutter

If you wish to look at various sorts of CNC tooling, most likely to one of these resources on the Internet:
Enco
Travers
McMasters-Carr
Grainger

Skim a few of these distributors’ magazines as well as you will certainly obtain a concept concerning the unlimited styles of tooling.

CNC is utilized in the machining procedure. Generally, you can get better accuracy, quicker manufacturing, and also general performances when making use of CNC machining. This is why it has actually become so preferred. In the past, CNC machining was extremely costly. With time, it has actually come to be somewhat low-cost and also currently people do it as a pastime. I am thinking that is why you are right here.
Right here are a few different sorts of CNC devices that do various machining procedures:
Milling devices
Wood routers
Plasma cutters
Foam cutters
Press brakes
Lathes
Cutoff saws

Individuals have effectively applied CNC to virtually any sort of motion control. The only thing that will limit you is your creative imagination.

The E-make team has greater than three decades of consolidated experience in prototype machining, CNC machining.And has a high-level technical team of 25 peoples.The processing top quality of the fast production is stable, the handling accuracy is high, and the look is exquisite.If you require any type of assistance, please do not hesitate to contact us.

die casting aluminum parts

CNC Machining And Die Casting Process

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CNC Machining And Die Casting Process
For metal made product,we all know they can be made by CNC machining process or die casting process,but there are much difference between them.
CNC machining is a precision machining process,including CNC milling,CNC turning,CNC drilling,etc.The Advantage of CNC machining is as following.
A，CNC machining can process the workpieces with complex shape,which no need to use complicated tooling.Also,If we need to modify the shape or the dimensions of the workpiece,we just need to change the the machining program.That is why CNC machining is more suitable for manufacturing the new product in prototype stage.
B，The quality of the workpiece made by CNC machining is stable, also,the machining accuracy and the repeated machining precision is high.
C，The production efficiency is higher in the case of multiple varieties and small batch production,which is helpful to reduce production preparation, machine adjustment and process inspection time.
D，Most of materials can be made by CNC machining,such as wood,bamboo,plastic (ABS,POM,PC,PMMA,PTFE,bakelite,etc) and metal (aluminum,copper,brass,steel,etc).
E，Most of the surface treatment process can be used for the CNC processed products,such as anodizing,painting,electroplating,powder coating,sandblasting,etc.
The disadvantage of CNC machining is high technical requirements for machine operators and machine maintenance personnel,also the production cost is more expensive and not cost-effetive for the bulk production,on the contrary,die casting process is very cost-effetive for the production of large quantities of metal products.Even Though,die casting also have it’s advantage and disadvantage.
Die casting process is a kind of metal casting,the characteristic is by using the inner cavity of the mold to apply high pressure to the molten metal, which is similar to the process of injection molding.Most of die castings do not contain iron, such as zinc, copper, aluminum, magnesium and other materials are formed by alloy casting.
The advantage of die casting process
A,As we said above,die casting is very cost-efftive way for the bulk prodution of metal parts,expecially the small and medium size metal parts.
B,Comparing with the other casting process,the surface of die casting is more smooth,so the product size consistency is very high.
C,The production efficiency of die casting is very high.
D,After mold finish,it can be used to casting at least tens of thousands of products,so the cost of the unit parts is very low.
The disadvantage of die casting
A,Due to the high filling speed of liquid metal in the mold cavity and unstable flow state,if use the general die casting method,the castins is easy to produce pores and cannot be heat treated
B,Die casting is hard to produce the castings with complex concave;
C,The tooling is very expensive,so die casting is not suitable for small batch production.
D,The material that die castings can use is limited.

Therefore,for developing the new products or small batch production or the product with very complex structure,CNC machining process might be a better option.But for the mature product with great sales and require large quantity,die casting may more suitable.

CNC Machining Technology

The Process Of CNC Machining

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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.

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