In recent years, although CNC machining methods have become mainstream, it has become a difficult problem for manufacturers to choose high-quality machining manufacturers. So how to solve this problem? Today, the editor of HKAA will teach you how to find a reliable mechanical parts processing factory.

To find a high-quality processing factory, you can examine the following aspects;

1. Standardized operating procedures

Operating procedures are the basis for ensuring product quality. When choosing a mechanical processing factory, you must have a certain understanding of the operating procedures of the machinery factory.

Learn more about it in more detail, such as: whether the safety startup inspection before startup, startup reset, and startup preheating are completed as required; the program sheet mold number, workpiece number, reference angle orientation, XYZ three-axis number acquisition method and number acquisition surface Determine whether it is reasonable; clean and arrange the clamping before loading the workpiece on the machine, tighten the screws, and check the workpiece calibration; recheck the tool and safety inspection and processing data inspection when starting processing; clean the workpiece before dismounting the machine and other related processing operations Whether the process is standardized and whether there are clear regulations.

2. Implementation of conventional processing standards

As for processing standards, any enterprise engaged in mechanical processing should pay attention to them. Processing standards are the guarantee of accuracy after products are made. Only by meeting the standards can qualified products be manufactured.

Conventional processing standards include: whether the processing requirements for the structural assembly groove on the mold core are the same as those for the mold base; whether the processing and discharge drawings are based on the engineering parts drawing; whether the parting surface polishing knife margin is not exceeded for small molds 0.05mm/S, while large molds cannot exceed the standard of 0.08mm/S, etc.

3. Quality of workpiece delivery

The delivery quality of workpieces is the most intuitive way to reflect the strength of a mechanical processing factory. When considering the quality of workpiece delivery, you can get to know the companies that have cooperated with the machining shop before. Ask them whether the surface quality and size of the workpiece they received are the same as the drawings, etc.

Identifying quality CNC machining manufacturers is crucial to ensuring that your parts or products are manufactured with precision and reliability. Here are some key factors to consider when evaluating CNC machining manufacturers:

1) Experience and Reputation:

Look for manufacturers with a solid track record and extensive experience in CNC machining. A company that has been in business for a longer period is likely to have refined its processes and gained valuable expertise.Find out whether the factory has experience working with similar companies and whether it can meet your specific needs.

2) Certifications:

Check if the CNC machining manufacturer holds relevant certifications.Understand whether the factory has a strict quality control system, which can reflect the importance the factory attaches to product quality. ISO 9001 is a widely recognized standard for quality management systems. Other industry-specific certifications may also be relevant, depending on your requirements.

3) Facility and Equipment:

Check whether the factory is equipped with advanced processing equipment and technology, which will directly affect the processing accuracy and quality of the product.Visit the manufacturer's facility if possible or inquire about their equipment. High-quality CNC machining requires state-of-the-art equipment and a well-maintained facility.

4) Technical Capabilities:

Understand whether the factory's technical team has rich experience and professional knowledge, and whether it can provide technical support and solutions.Assess the manufacturer's technical capabilities, Ensure they have the expertise to handle the specific materials and tolerances required for your project. Look for a diverse range of machining capabilities, including milling, turning, and precision grinding.

5) Quality Control Processes:

Inquire about the quality control processes in place. A reputable CNC machining manufacturer should have robust quality control measures at every stage of the manufacturing process. This includes inspection and testing of raw materials, in-process inspections, and final product quality checks.

6) Material Selection and Sourcing:

Verify that the manufacturer has experience working with the materials required for your project. Ask about their material sourcing practices to ensure they use high-quality materials from reputable suppliers.

7) Communication and Collaboration:

Evaluate the manufacturer's communication and collaboration processes. A good manufacturer should be responsive to your inquiries, provide regular updates on the project's progress, and be open to collaboration on design improvements and modifications.

8) Customer reputation:

Look for customer reviews and feedback about the factory to understand its reputation and credibility in the market.

9) Cost and Quoting Process:

While cost is an important factor, it should not be the sole determinant. Consider the overall value offered by the manufacturer, taking into account factors such as quality, lead times, and communication. Be cautious of significantly lower prices that may indicate compromises in quality.

10) Flexibility and Scalability:

Assess the manufacturer's flexibility and scalability. A good CNC machining partner should be able to adapt to changes in project requirements and accommodate varying production volumes.

11) Reliable and stable customization capabilities:

Find out if the factory can customize processing to your specific needs to meet your business needs. Whether the factory operates stably and can provide you with long-term services.

12) Visit the factory:

If possible, you can conduct an on-site inspection to observe the factory's operations, employee work attitudes, and on-site equipment status, etc., in order to more accurately evaluate the factory's strengths and weaknesses.

Consider establishing a long-term relationship with the factory to obtain better service and preferential treatment.By thoroughly evaluating these factors, you can identify a CNC machining manufacturer that meets your quality standards and can deliver reliable and precise parts for your specific needs.

1--Quality system of IATF16949 is applied for Automotive components.

2--ISO13485 qualify system are used for medical equipment CNC machined metal parts.

3--Quality system of AS9100 is applied for aerospace communication aluminum parts and aircraft components.

We are AS9100, IATF16949 and ISO13485 certified to ensure the quality and safety of our products.

Product R&D: 

Our material engineers, process engineers and manufacturing teams focus on the manufacturing of parts to achieve better functionality, quality and cost.

Product Production:

We have the ability to produce a variety of parts and can precisely manufacture parts to the dimensions you require.

Technical Support: 

Through our team and using reliable manufacturing methods, we can fully adapt to meet your technical requirements and assist you in solving problems.

HKAA is committed to creating high-quality products and providing a better service experience.HKAA is the industry leader in custom, quick-turn CNC machining services for rapid prototyping and production parts. At present, it mainly serves the processing of precision mechanical parts such as power tools, reducers, automobile parts, medical equipment parts, and defense communication equipment.

We can offer a one-stop station service, and support the latest in CNC machining and turning processes, can support a high level of part complexity, and provide exceptional surface finishes. We can also machine and inspect your technical drawing, always ensuring you have the CNC machined parts you need, at-quality, and on time.

CNC technology originated from the needs of the aviation industry. In the late 1940s, an American helicopter company proposed the initial idea of CNC machine tools.

In 1952, the Massachusetts Institute of Technology developed a three coordinate CNC milling machine.

In the mid-1950s, this type of CNC milling machine was used to process aircraft parts.

used in various industrial sectors. However, the aerospace industry has always been the largest user of CNC machine tools; Some large aviation factories are equipped with hundreds of CNC machine tools.

In the early days of the development of CNC machine tools, CNC machine tools with continuous trajectory were mainly used for continuous trajectory control; continuous trajectory control, also known as contour control, requires the tool to move according to a prescribed trajectory relative to the part. Later, we vigorously developed point control CNC machine tools. Point control means that the tool moves from one point to another as long as it reaches the target accurately regardless of the movement route.

In order to improve the degree of production automation, shorten programming time and reduce CNC machining costs, a series of advanced CNC machining technologies have been developed.

Such as computer numerical control, which uses a small or microcomputer to replace the controller in the numerical control system, and uses software stored in the computer to perform calculation and control functions. This soft-connected computer numerical control system is gradually replacing the initial state of the numerical control system. 

Direct CNC uses computers to directly control multiple CNC machine tools, which is very suitable for small batch and short-cycle production of aircraft.

system itself is complex and expensive, it can improve machining efficiency and quality.In addition to improving the hardware of CNC systems and machine tools, another important aspect of the development of CNC is the development of software.which is generally divided into main processing programs and post processing programs. The former translates the program written by programmers and calculates the tool path; The latter compiles the tool trajectory into a machining program for CNC machine tools.

inputting these programs into a machine tool controlled by a computer program for directive machining, or directly writing instructions on the control panel of the machine tool controlled by this computer program for machining. The machining process includes: tool feeding, tool changing, variable speed, direction changing, parking, etc., all of which are completed automatically.

CNC machining, which stands for Computer Numerical Control machining, is a manufacturing process that utilizes computerized controls and machine tools to remove material from a workpiece to create a custom-designed part or product. This process is highly precise and efficient, allowing for the production of complex and accurate components.

Implementing CNC machining programming is crucial, but programming alone is not enough. Here's an overview of the key components and steps involved in CNC machining:

1) Computer-Aided Design (CAD): The process begins with creating a detailed 3D model of the part using CAD software. This digital model serves as the blueprint for the CNC machining process.

2) Computer-Aided Manufacturing (CAM): The CAD model is then converted into a CNC program using CAM software. This program contains the instructions that the CNC machine will follow to manufacture the part.

3) CNC Machine Setup: The CNC machine is set up with the necessary tools, such as drills or cutters, and the workpiece is secured to the machine bed. The machine's axes are also calibrated to ensure precise movement.

4) Toolpath Generation: The CAM software generates a toolpath, which is the specific route that the cutting tool will follow to shape the workpiece. This toolpath is determined based on the geometry of the part and the selected tools.

5) CNC Machining Operations: The CNC machine executes the programmed instructions, precisely controlling the movement of the cutting tool in multiple axes (commonly X, Y, and Z). The cutting tool removes material from the workpiece according to the specified design.

6) Quality Control: Throughout the machining process, quality control measures may be implemented to ensure that the finished part meets the desired specifications. This can include measurements, inspections, and testing.

CNC machining is widely used in various industries, including aerospace, automotive, medical, and electronics, among others. It offers several advantages, such as high precision, repeatability, and the ability to produce complex shapes and tight tolerances. Additionally, CNC machining allows for efficient production of prototypes, small batches, and large-scale production runs.

The process specifications for CNC machine tool processing and traditional machine tool processing are generally consistent, but there have also been significant changes. A mechanical machining method that uses digital information to control the displacement of parts and tools. It is an effective way to solve the problems of variable parts variety, small batch size, complex shape, high accuracy, and achieve efficient and automated processing.

CNC machine tools are advanced processing equipment with high automation and complex structures; There are many specialized types of CNC machine tools that can perform various operations on raw materials; Vertical machining center, horizontal machining center, gantry machining center, composite machining center, five axis linkage CNC machine tool, gantry CNC machine tool, etc:

1.CNC lathe: CNC lathe is the most common type of CNC machine tool, mainly used for machining rotating parts such as shafts, discs, sleeves, etc. CNC lathes have high machining accuracy and production efficiency, making them suitable for mass production.

2.CNC milling machine: CNC milling machine is a relatively complex CNC machine tool that can perform multi axis machining, such as milling, drilling, tapping, etc. CNC milling machines are suitable for processing complex shapes such as curved surfaces, molds, and parts.

3.CNC grinding machine: CNC grinding machine is a high-precision CNC machine tool mainly used for machining the surface of parts, such as flat, cylindrical, conical surfaces, etc. The machining accuracy of CNC grinding machines can reach the micrometer level.

4.CNC drilling machine: CNC drilling machines are mainly used for processing hole type parts, such as shafts, sleeves, plates, etc. CNC drilling machines can perform multi axis drilling processing, suitable for drilling various complex parts.

5.CNC bending machine: CNC bending machine is a type of CNC machine tool specifically used for bending processing, which can perform bending, edge bending, and other processing on sheet metal.

6.CNC press: CNC press is a type of CNC machine tool specifically used for stamping processing, which can perform stamping, stretching and other processing on sheet metal.

7.CNC shearing machine: CNC shearing machine is a type of CNC machine tool specifically used for shearing processing, which can perform cutting, cutting, and other processing on sheet metal.

8.CNC wire cutting machine: CNC wire cutting machine is a CNC machine tool specifically used for electrical discharge wire cutting processing, which can cut and process metal materials.

9.CNC laser cutting machine: CNC laser cutting machine is a CNC machine tool specifically used for laser cutting processing, which can perform high-precision cutting, marking and other processing on metal materials.

10. CNC engraving machine: CNC engraving machine is a type of CNC machine tool specifically used for engraving and processing, which can perform engraving and processing on materials such as metal and stone.

In fact, there are many other types of CNC machine tools, such as CNC machine tools for EDM, CNC drilling machines, stamping CNC machine tools, etc. Different types of CNC machine tools are suitable for different processing needs, and suitable types can be selected for processing according to actual situations.

HK AA has 140 CNC milling machines include 3-axis, 4-axis and 5-axis USA imported HAAS machines.

We are one of the largest OEM manufacturer in China with 25 years experiences in comprehensive hardware manufacturing including CNC machining, lathe turning, gear hobbing, mechanical assembly etc.

HKAA will be your best choice!