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.

What are the classifications of toy prototypes?

According to the materials used, the processing of toy prototypes can be divided into: plastic silicone and metal materials.

And According to the product effect to be achieved by level, it can be divided into: appearance, structure and main function prototype.

  1. Appearance prototype: Mainly inspect the appearance of the design, which requires high requirements for appearance surface finish and accurate color, so the internal treatment requirements are not high.
  2. Structure Prototype: It mainly detects the rationality of the structure of the product. The requirements for the size of the product are relatively high, and the requirements for the appearance are relatively low.
  3. Functional prototype: It is required to achieve the same appearance, structure and function as the real product, which can be understood as a finished product that is not on the market, so it is a type of prototype with high requirements and difficulty.

The E-make company is a rapid prototyping manufacturer.

Our factory provides high precision CNC machining service、Vacuum casting service、3d printing 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!

Advantages of stainless steel sheet metal stamping

The most fascinating part of stainless steel stamping parts is that the gloss of stainless steel is very good, with very suitable hardness, it is easy to form the required shape in the production process, and the product is not easy to deform and damage during use.

Stainless steel stamping parts have a good anti-corrosion function and increase the service life of the product by 10-12 years. The stainless steel material can accept a variety of surface treatments, such as sandblasting, wire drawing, polishing, coating, electrolytic polishing, etc.

Although the price will be slightly higher than other materials, for the use of stainless steel stamping products, stainless steel stamping products are cost-effective products.

The E-make team has more than 30 years of combined experience in prototype machining, CNC manufacturing, vacuum casting service.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!

The Difference Between Acrylic Prototype And PC Prototype

The Difference Between Acrylic Prototype And PC Prototype
When we need to make some transparent rapid prototype,we usually use acrylic or PC as material.But there is some difference between acrylic prototype and PC prototype as below.

1.The impact resistance of PC prototype are better than acrylic.
2.The PC prototype is more uvioresistant than acrylic.
3.PC prototype is more strong than acrylic prototype.
4.Acrylic prototype is more clear than PC prototype.
5.The high temperature resistance of PC prototype is better.
6.PC is flameresistant material,but acrylic is not.
7.Acrylic prototype is more easy to be polished than PC prototype.

Which material is better is up to what kind of feature that your need for the prototype.Our factory is professional in CNC machining and molding,if you have any item need to do rapid prototyping,is welcome to contact us.

Sandblasting surface finish of prototype model

The prototype of the newly processed prototype model generally requires surface post-finish,and the sandblasting is one of the surface finish processes.

Through the surface finish of sandblasting, the tiny burrs on the surface of the parts can be cleaned, and the surface of the parts is smoother, more beautiful and more precise.And it can greatly improve the mechanical properties of the prototype surface.Therefore, the fatigue resistance of the parts is improved, the adhesion between the parts and the coating is increased, the durability of the coating film is also extended, and it is also conducive to the leveling and decoration of the coating.

The E-make team has more than 30 years of combined experience in prototype machining, CNC manufacturing, vacuum casting service.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. E-make company has been providing high quality rapid prototype manufacturing services for major enterprises.

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

polyurethane casting

The processing of vacuum casting prototype

The processing of vacuum casting prototype


We usually use CNC maching to processing prototype ,but the CNC tooling is hard , can only  process hard material.So if customer need to make rubber product ,we will not be able to use CNC machining .In that time ,we will use vacuum casting to process.vacuum casting is the best way to make rubber product in small quantity.So how vacuum casting to process a prototype?


2,make a mold.

3,Pour the liquid soft rubber material into the mold and take it out after cooling.

4,surface finish:

If those rubber product need to do color,there have two way to make is painting after the product out of mold .Another is the color and the product out of mold together.This mean mix the color powder andrubber materials required by the customer into the mold, and take them out after cooling.

At this time, the product comes with its own color when it comes out of the mold. But the price will be more expensive than painting.

The surface of the vacuum casting product is smooth, and generally does not need manual processing. Which can save manual processing time.

If you have rubber products to make, please contact E-make. We are a rapid prototyping manufacturer in China, with over 10 years of experience in CNC,3D printing, vacuum casting and injection molding die-casting prototypes. We can quickly and cheaply produce high quality parts and prototype for you.

The difference between anodizing and painting in the surface finish of prototype processing

Anodizing and painting are common surface finish processes when making prototype models. Although anodizing and painting both make the surface of the prototype color, there are still differences between them, which are mainly reflected in the following three aspects:
1.For different materials, painting can be applied to many materials for prototypes, such as metal, plastic and resin, and anodizing is a surface finish process that only aluminum alloy prototypes have.
2.The color persistence is different. Because the painting only painting a layer of paint on the surface of the prototype, it will fall off over time, and the anodizing is to soak the aluminum alloy prototype in the potion to form an oxide film on the surface.Because the alumina produced by anodizing is a stable substance, it is difficult to react with oxidation in the air, so the color of the surface is relatively stable and not easy to fall off.
3.The effect is different. The anodizing color has a metallic texture. If you use painting, you will not be able to adjust that effect anyway.

CNC machining metal parts

Material For Aluminum Prototype

Material For Aluminum Prototype
1.Pure aluminum plate;
In all of the aluminum plate series,pure aluminum plate is the one that including most aluminum,the purity can over 99%,which is widely be use for conventional industrial.Therefore,the production process of pure aluminum plate is more simple and the price is more cheap.The material code we usually use of the pure aluminum plate is 1050,1060 and 1100.

2.Aluminum alloy plate;
Aluminum alloy plate series 2 with better hardness,include cuprum about 3-5%,which is a parts of aviation material.

Aluminum alloy plate series 3,including manganese about 1-1.5%,is commonly used in making car prototype,refrigerator prototype because it has good rust protection.Except that,Aluminum3003,3004 and 3A21 is usually use for making medical prototype,home appliance and so on.

Aluminum alloy plate series 4 including silicon about 4.5-6%,is a nice corrosion resistance material that usually be used for making mechanical parts,building parts,welding parts,etc.

Aluminum alloy plate series 5,we also call it aluminium magnesium alloy because it includes magnesium element about 3-5%.The feature of aluminum alloy plate series 5 is low density,high tensile strength and elongation,so that it will be use for aviation,such as fuel tanker.Also,it is a good material for wire drawing process.

Aluminum alloy plate series 6 including magnesium,silicon and other element,has both of aluminum4 and aluminum5 ‘s advantages,also easy for coating.What we usually use is aluminum 6061 and aluminum 6063 for prototyping.

Aluminum alloy plate series 7 with high hardness,high strength and nice wear-resistant,specially the aluminum 7075, is commonly used for making aluminum alloy plane model.

What kind of aluminum is best for machining your prototype,is up to your requirement of the product.Shenzhen E-Make Model Technology Co., Ltd is professional in CNC manufacturing,is welcome to contact us if you want to customized your prototype!