CNC Machining Factory In China

About HOKARE 

Your Expert CNC Machining Manufacturer and Supplier in China

HOKARE CNC Machining provide your precision components in ±0.006mm-0.01mm accuracy. The products comes out from our factory are wholly inspected before shipping.

HOKARE CNC Machining in order to finish the precision task, equiped with Five Axis CNC Machining Center,Japan Brother  Turning/Milling Compound CNC machining center, 3 Axis, 4 Axis Machining center, CNC Lathes.

Precision CNC Machining

We provide our customers with completely CNC machining service applied by our advanced 3,4,5 axis CNC machining centers. We provided our customers with high precision accuracy with 0.003mm using our vertical machining center.

Custom CNC Machining

Hokare will provide top Custom CNC machining service according to your requests, drawing 2D, 3D or samples. Short lead time and delivery time.
5-Axis-CNC-Milling

Why Us

CNC Machining Parts Supplier

Hokare has a vast range of machining operations available. Hokare CNC machining factory in China is engaged in various types of machines, software applications, and machine tools, depending on the machine used to produce the desired design or shape.

Additionally, Hokare CNC machining is used for industrial hardware products to make highly detailed cuts out of metal pieces. With the Hokare CNC machine, the complicated cuts that need to be made angles on a work piece can performed within a minute

Hokare CNC machining suppliers in China are programmed to the customer’s accurate specifications, guaranteed by our in-house expert team.

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CNC Machining Products Application

A broad range of operations and capabilities offered by the Hokare CNC machining in China help to find application in numerous industries including aerospace, automotive, agriculture and construction.

CNC Machining: The Complete FAQ Guide

Before you opt for CNC machining, you should consider cost, availability of the machine, understand the process, and have appropriate software.

This guide answers all questions you have been asking about CNC machining.

So, keep reading if you want to learn more.

What is CNC Machining?

CNC machining is a subtractive manufacturing technology, which creates parts by removing material from a workpiece using various cutting tools.

In this manufacturing process, a preset computer software dictates the movement of factory machinery and tools.

As a digital manufacturing technology, it becomes easy to use it to accomplish 3D cutting tasks in a single set of prompts.

How does CNC Machining Process work?

The process starts with designing parts in CAD software, and the 3D model defines the ideal dimensions and properties of final part.

CNC system is activated, leading to preprogramming of desired cuts into the software.

The corresponding tools and machinery carry out dimensional tasks as required as dictated by the software.

It works more or less like a robot.

CNC programming uses a code generator, which is within the numerical system.

The code assumes mechanisms are flawless irrespective of possibility of errors.

Ideally, the possibility of errors is greater whenever this machine is dictated to cut simultaneously in more than one direction.

There’s a series of inputs referred to as a part program, which places the tool in a numerically controlled system.

Programs are incorporated in a numerical control machine via punch cards.

By contrast, the CNC machines programs are fed into the computers through relatively small keyboards. But the CNC programming is retained in a computer’s memory.

The programmers are responsible for designing and editing the specific code.

It thus implies CNC systems provide far much expansive computational capacity.

You can add newer prompts to pre-existing programs through revised codes hence making the CNC systems non-static.

Moreover, contemporary CNC machines are fully automated.

They only require digital files with the instructions regarding tooling and cutting trajectories.

What are the Types of CNC Machining?

Some of the most common options include:

· CNC Drilling

It is a CNC machining operation designed for creating holes on the surface of the workpiece.

It uses drill bits, which have sharp tips of the tool rotating at super-fast speed to produce a hole.

CNC drilling machines are common for automating this task, providing higher accuracy, and offer a more cost-effective solution.

· CNC Milling

It refers to an operation where the cutting tool rotates at a predetermined speed. It uses the milling tool to remove chips from a workpiece.

Examples of milling operations include; face milling, chamfer milling, end milling, tapping, and boring, among others.

Milling is a universal fabrication technique, which offers great accuracy and tolerances. It is ideal for a wide range of materials and also relatively fast.

You can use this fabrication technique to manufacture various types of complex parts, which is advantageous.

On the flip side, milling yields a large amount of waste and requires a variety of tooling. The equipment can as well be relatively expensive.

· CNC Turning

It is also referred to as lathing, and it involves rotating the workpiece on the machinery rather than cutting tool.

It is more or less the opposite of milling.

This method is often common for manufacturing shafts. In such instances, the tool is brought against the rotating workpiece to cut off some bits of metal known as chips.

This operation is ideal for using on the outer or inner parts of a cylinder.

· CNC Grinding

It is an operation, which uses a rotating grinding wheel to remove material from a workpiece.

The essence of this operation is to provide high precision finish to the metal part.

It provides a surface quality, which is relatively high.

Moreover, it is used as a finishing operation rather than forming the final part from raw materials.

· CNC Routing

It is a machining operation where the rotating piece is the cutting head. CNC routers are comparatively similar to CNC milling machines.  The major difference, in this case, is on the materials ideal for cutting.

This operation is also the ideal option for slicing softer materials, which don’t require high accuracy. It has lesser power output.

Routers are relatively fast, thus making it easy to produce a number of parts within the shortest time possible.

What are the Types of CNC Machining Software available?

They include the following;

· CAM Software

It is the type, which reduces production time, eliminating the necessity to produce drafted paper drawing instead of the desired manufactured part.

CAM software controls the CNC machine making it capable of producing a high volume of parts without human assistance.

Such machines also feature lasers that can detect extreme imperfections in final product.

· CAD Software

A Computer-Aided Design software refers to a program used for designing a product, which will ultimately be produced by a CAM software program.

It gives designers freedom to create a product and save it on a computer screen for later editing and printing.

It has a myriad of capabilities, making it ideal for CNC machining.

· CAE Software

Computer Aided-Engineering software is a tool, which assists engineers in analyzing, design, simulate, plan, manufacture, diagnose, and repair of machining undertakings.

This tool manages tasks in three phases, which include; pre-processing, analysis, and post-processing. It, however, addresses a wide range of applications.

· CAD/CAE/CAM Software

There are some companies, which offer all the three elements of CNC controlling applications into a single manageable software package. These programs handle the whole fabrication process.

What are the Best Materials for CNC Machining?

The ideal material depends on the purpose of the part you are producing.

Generally, the most suitable ones to use for CNC machining include the following;

CNC Machining

Metals – This operation uses a wide range of metals and metal alloys. This material is ideal for manufacturing of both custom one-off parts and prototypes.

Aluminum 6061 is by far a highly regarded metal for CNC machining.

Other ideal metals include stainless steel, brass, mild steel, and tool steel.

Plastics – These are lightweight materials with wide-ranging physical properties. They come in handy in this operation due to their chemical resistance as well as electrical insulation features.

It is usually CNC machined for prototyping reasons.

PEEK refers to a high-performance engineering thermoplastic material commonly used for relatively demanding applications.

Polycarbonate is a highly regarded thermoplastic material with excellent toughness, thermal resistance, and impact strength. It is ideal for outdoor applications and can be colored or transparent.

Nylon – It refers to a general-purpose engineering thermoplastic workpiece with all-round excellent mechanical properties. It also has excellent chemical resistance.

POM – It is also known as Delrin and is regarded as one of the easiest-to-machine engineering thermoplastics. It has high stiffness, good thermal stability, and excellent frictional properties.

Is there any Substitute for CNC Machining?

Yes.

For applications which might not necessarily be appropriate for CNC machining, you may consider the following options;

Water jet cutting – It refers to a manufacturing technique that cuts hard materials with high-pressure applications of water.

In some instances, water is mixed with some strong abrasive substances or sand to cut the material.

Electric discharging – Also known as EDM, it refers to the process that uses electrical sparks to mold workpieces into specific shapes.

It uses current discharges between two electrodes, which in turn remove the sections of a given workpiece.

Ultrasonic machining – It refers to a subtraction manufacturing technique which removes from the surface of a workpiece.

Also, it happens through vibrations of a tool against a material surface in the presence of fine abrasive particles.

This is often as a result of high frequency and low amplitude.

What is the Feed Rate in CNC Machining?

It refers to the rate at which the cutter engages the part by moving through the workpiece being cut.

It is programmed in the setting of a CNC model to regulate the cutting speed of the tool to the workpiece.

Once the tool is set, it rotates at speeds of cutting forward according to the preset tool path.

The feed rate is dependent on various parameters such as machining accuracy, workpiece, the material of the tool, and surface roughness.

Even so, the optimum feed rate is limited by the machine tool’s stiffness and the feed system’s performance.

What are the Types of Machines used for CNC Machining?

The most common CNC machines used in this operation include the following;

CNC Machine

Lathes – It is a machine, which cuts workpieces in a circular direction using indexable tools. CNC technology allows the cuts by lathe machines to be performed with precision and high velocity.

Plasma cutters – It cuts workpieces using a plasma torch. It is ideal for metallic materials but can also be employed on other surfaces.

CNC mills – It is a type that can run on programs, with numbers and letter-based prompts that guide the pieces into various distances.

Besides, it uses programming based on G-code or a particular language designed by the manufacturing team.

Is the CNC Machining Process Eco-friendly?

Yes.

This process utilizes modern equipment, which conforms to a significant percentage of the required eco-friendliness.

The dust and soot it might produce under certain circumstances are suppressed to prevent spreading, which could lead to environmental degradation.

Moreover, CNC machining enhances the integration of different operations and processes.

Significantly, this helps to ensure the environment always remains clean.

More importantly, as a CNC machining company, we also ensure that we protect the environment through the recycling of sub-products.

For instance, we have integrated a recycling routine for machine shavings, lubricants, oils, and all residual components.

This reduces the volume of waste in the landfills, hence conserving and making the environment green.

What are the Limitations of CNC Machining?

Here are some limitations of CNC machining:

Relatively costly – Since it is a subtractive technology, machining the sum up to increased cost. The dynamics of the cutting process also restrict the operation.

This geometric complexity, therefore, makes CNC machining quite expensive compared to other manufacturing techniques.

Tool access and work-holding restrictions – A cutting tool with suitable geometry is required to remove material from a solid block.

It thus implies that it can be difficult to machine parts with steep undercuts or parts with internal geometries.

High start-up costs – The initial investment in CNC machining is directly related to process planning.

It is quite involving, given it requires input from an expert and other elements, making it quite expensive.

Additionally, start-up costs are fixed with a slight opportunity to reduce the unit price.

How does CNC Machining compare with 3D Printing?

These manufacturing techniques are exceptional and have unique benefits which suit different situations.

However, there are a few elements on how these two techniques vary, which include;

CNC machining is ideal for manufacturing parts with limited effort through subtractive processes.

3D printing, in contrast, is suitable for creating parts through an additive process.

3D printing is a relatively cheaper undertaking compared to CNC machining.

The start-up and running cost for 3D printing is lower than CNC machining.

3D printing provides a faster turnaround compared to CNC machining.

You can produce high-volume 3D printing products than CNC machining parts as long as you have the correct equipment, utilities, and software.

What do you need to consider when CNC machining?

This type of manufacturing technology presents a wide range of advantages, so you need to consider it for your next project.

Some of the beneficial reasons include the following;

· Excellent Material Properties

Parts produced from CNC machining have unmatched physical features, which are somewhat identical to bulk material.

It thus makes them suitable for applications that require high performance.

Additionally, this provides engineers with the flexibility to choose the material with optimal features to use in their respective projects.

· High Accurate Parts with Tight Tolerance

This operation creates parts with greater dimensional accuracy compared to other manufacturing technologies.

You can remove the workpiece accurately during the latter stages of machining, allowing you to attain tight tolerances.

· One-off Custom Parts and Prototypes

CNC machining hardly requires any form of special tooling compared to formative technologies.

It thus makes the production of custom one-off parts and prototypes, on-demand, economically viable.

Thus, it is a cost-effective solution, especially for one-off custom prototypes and metal parts.

· Fast Turn-around Times

Modern CNC machines encompass advanced technology and software, which come in handy in accelerating production times.

You can place an order for your CNC machined parts and have it within five days.

· Allows for Small to Medium Production

This technology is suitable for manufacturing small to medium volumes between 10 and 100.

It thus makes it easy for you to obtain parts irrespective of the volume or quantity you require.

Are there CNC Machining Design Restrictions?

INTERFACE CNC Design

Yes.

In CNC machining, the design restrictions are a natural result of the mechanics of the cutting operations.

The notable design restrictions include the following;

  • In terms of tool geometry, many CNC machining tools tend to have a cylindrical shape with a spherical or flat end. This restricts the part geometries which can be produced.
  • As a result of high temperatures and cutting forces, a workpiece can deform or vibrate. This can restrict the minimum wall thickness a CNC machined part can have. It also limits the maximum aspect of all features.
  • Geometry is also pegged on how a part is held on a CNC machine and the number of necessary set ups.

This impacts the cost, as well as the accuracy of the part.

  • Cutting tool stiffness tends to deflect or vibrate during machining, leading to loose tolerance or tool breakage.

What are the features of materials used for CNC machining?

The respective materials you use for CNC machining need to have the following properties;

  • High tensile strength
  • Excellent chemical resistance
  • Easy-to-machine
  • Excellent temperature resistance
  • High thermal electrical conductivity
  • Excellent wear and corrosion resistance
  • High hardness
  • Excellent machinability and frictional characteristics

Can you run a CAD file using a CNC Machining System?

Yes.

You run it through a program, typically computer-aided manufacturing software called CAM.

It extracts part geometry and digital programming code.

In turn, it helps to control the CNC machine, operate the tooling, and enable it to produce a customized part.

What Types of Surface Finishes can you Apply after CNC Machining?

It varies based on your specific demands, but the most commonly used include the following;

· As-machined

This type of finishing has the tightest tolerances and comes at no additional cost since it is the standard finish. It, however, has visible marks following the path of a cutting tool.

· Bead Blasting

It is the type which adds a uniform matte surface finish on a CNC machined part.

Besides, it is vital since it removes all the tool marks.

This surface finish is ideal for aesthetic since the resulting roughness is not guaranteed.

It is a low-cost finish but can affect surface roughness and critical dimensions.

· Hardcoat Anodizing

It is the type which produces high-density and thicker ceramic coating, which provides excellent wear resistance and corrosion.

It is ideal for functional applications and can mask critical areas to retain their tight tolerances.

· Anodizing

It adds a thin, hard, and non-conductive ceramic coating on the part’s surfaces.

Also, it increases corrosion and wear resistance.

You can dye anodized parts to produce a smooth and aesthetically appealing surface.

· Powder Coating

It is a type that adds a relatively thin layer of strong, corrosion-resistant protective polymer paint to the surface of a part.

It has higher impact resistance than anodizing and is seemingly compatible with a wide range of metals.

It is unsuitable for internal surfaces and small components and has less dimensional control.

· Silk Screening

This is an inexpensive approach to printing logos or texts on the surface of CNC machined parts.

It enhances aesthetics and can be used with other finishes, such as anodizing.

The print can only be applied to external surfaces.

How can you Reduce the Cost of CNC Machining?

Some of the tips you may execute to reduce the cost of CNC machining include the following;

  • Adding the undercuts to sharp edges or increasing the size of all fillets.
  • Considering the cost of material. You have to ensure you are going for cost-effective materials.
  • Minimizing the number of machine orientations.

Is CNC Machining Dangerous?

Not necessarily unless under circumstances of negligence and poor handling.

Ideally, CNC machining comprises both milling and turning.

These two elements use spinning parts and tools, which are dangerous, especially if not careful enough.

Secondly, CNC machining may also emit smoke and dust during operation.

The dust often includes fine metallic particles, which may harm the operator’s respiratory system.

Therefore, you must wear proper personal protective gear and ensure you work in a well-ventilated space.

Thirdly, the imminent danger may arise from sharp objects during operation.

These can be the parts of time cutter ejections, which fly at high speed.

Thus, you must be careful about handling any workpiece, especially when it is not yet ready.

Nonetheless, a knowledgeable and experienced operator is always aware of their way around the machinery.

Which Industries Benefit from CNC Machining?

CNC Machining Process

They are quite a number even though they tend to be far more essential in some sectors than others.

During production, different CNC machines are capable of varying levels of detail.

In aerospace industry, CNC machining is essential, particularly to the highly specified designs.

In this case, there is no room for any error; let’s say for a flying a plane or launching a rocket.

The automotive industry is also a great beneficiary of CNC machining in manufacturing high-performance custom parts.

The other beneficiary industry is sports and motorsports equipment. The operation helps in increasing performance in this sector.

It also comes in handy in manufacturing parts suitable for space applications.

High accuracy of CNC machined parts, in addition to several surface treatments, add to the need for this operation.

The electrical and electronic manufacturing industries also benefit from this operation.

All areas from PCB’s prototyping to manufacturing enclosures utilizes CNC machining.

And more prominently, the tooling and industrial manufacturing sector also benefit a lot from CNC machining.

For instance, fabrication of tooling for other processes and molds in injection molding utilizes CNC machined parts.

Is there a Minimum Run Quantity for CNC Machining?

Not really.

It varies from one company to another, depending on a wide range of prevailing circumstances.

Most companies, however, have flexible run quantity for this operation.

You’re likely to get a quote and run any quantity, including one-off prototypes from most companies around.

In a nutshell, there is no fixed minimum run quantity for this operation.

You can get anywhere from a few parts to up to millions of the same, depending on your needs.

What is the Standard Tolerance for CNC Machining?

In many cases, the standard tolerance of any particular dimension in CNC machining is ± 0.125 mm.

Even so, you can find some features with tighter tolerance down to ± 0.050 mm can be manufactured.

Moreover, CNC machining tolerances of ± 0.025 mm are also feasible.

How do you Guarantee Quality in CNC Machining?

We have a competent quality control team, which is tasked with making sure all parts meet the stipulated standard quality.

Our machinists confirm each part during set up tooling and instrumentation.

They also carry out a continuous run check and random checks on all machine parts to guarantee quality.

Our facility and production unit is often audited to ensure each aspect conforms to the required quality standards.

The CNC machined parts we produce are also approved by the various agencies responsible for verifying quality of process and products.

Moreover, we provide a warranty on the parts we CNC machine as a way of demonstrating confidence in terms of quality.

What is the Turnaround Time for Average CNC Machining Project?

There is no standard turnaround time for CNC machining operations.

This is irrespective of whether it is for prototype or parts production.

The needs and demands for different customers vary as well as the prevailing production circumstances.

The size of the project, its simplicity or complexity, and the order quantity are among the core variables determining the turnaround time.

In general, though, our lead times are competitive as we always invest aggressively to meet your needs and reduce delivery times.

What Certification Standards should a CNC Machining Company Comply with?

They are quite several, but the main ones include the following;

ASTM International – It refers to an agency, which designs and publishes voluntary accord on technical considerations for machinery, systems, and services.

PMPA – It is an international standard agency, which designs and controls policies regarding interests of precision machine products. This standard stands for Precision Machined Products Association.

ISO9001 – It is an international standard specifying the requirements for quality management systems. It proves an organization’s ability to produce products, which meet the requirements of customer and regulatory bodies.

API Q1 & Q2 Certification – It is an international quality standard, which explains the requirements and offers recommendations regarding numerous machining parameters. It factors in elements such as performance, functional interchangeability, and materials, among others.

CE – It is a certification mark demonstrating the product conforms to health, environmental protection, and safety standards. It is predominant for products sold in the European Union region.

Other than all these, there are also a number of local quality standards in different countries, which CNC machining company must comply with.

With this information, you can easily determine whether CNC machining is good for you or not.

Hokare Machinery is a leader in precisely CNC machined parts and components.

Contact us now for all your CNC machining needs.

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