Non-standard parts processing refers to the process of manufacturing based on the non-standard product requirements and engineering drawings provided by customers. As the shapes and sizes of non-standard parts are different from those of regular parts, the processing usually requires the application of some special techniques. 

Common processing methods in non-standard parts manufacturing: 

CNC machining is a method of processing parts through CNC machine tools. According to the requirements of engineering drawings, information such as processing paths and cutting parameters is input into the control system of the CNC machine tool. The tool is automatically controlled by the CNC system to achieve high-precision part processing. CNC machining is suitable for processing various materials and has the advantages of high processing accuracy and high processing efficiency. 

Milling is a method of cutting workpieces with a milling cutter on a milling machine. Milling can be used to process parts with complex shapes such as planes, grooves, and cams. Different milling methods such as plane milling, vertical milling, and extrusion milling can be selected according to the shape and requirements of the parts. 

Turning is a method of rotational cutting processing of workpieces by a lathe tool on a lathe. Turning can be used to process shaft parts, disc parts, etc. According to the shape and requirements of the parts, different turning methods such as outer circle turning, inner circle turning, and chamfer turning can be selected. 

Drilling is a method of hole processing on workpieces through drill bits on a drilling machine. Drilling processing can be used to process hole parts, such as hole processing, boring, etc. According to the requirements of the parts, different drilling methods such as single-hole drilling, multi-hole drilling, and reaming can be selected. 

Cutting is a method of processing workpieces through equipment such as shearing machines and laser cutting machines. Cutting processing can be used to process flat parts, such as shearing flat plates and cutting plates. According to the requirements of the parts, different cutting methods such as shearing, cutting and laser cutting can be selected. 

Welding is a method of processing workpieces through welding equipment. Welding processing can be used to connect multiple parts and achieve the processing of parts with complex shapes. According to the requirements of the parts, different welding methods such as arc welding, argon arc welding, and laser welding can be selected. 

Laser marking is a method of marking workpieces through a laser marking machine. Laser marking processing can be used to mark and engrave characters on parts. According to the requirements of the parts, different marking methods such as laser engraving and laser marking can be selected. 

Grinding is a method of processing workpieces through grinding machines. Grinding processing can be used to manufacture precise parts, such as precision shaft parts and molds. According to the requirements of the parts, different grinding methods such as cylindrical grinding, internal grinding, and surface grinding can be selected. 

Casting is a process in which metal is melted and then poured into a mold to cool and solidify into shape. Casting processing can be used to manufacture parts with complex shapes, such as casting molds and cast iron parts. Different casting methods, such as sand casting and metal mold casting, can be selected according to the requirements of the parts. 

Chenju Precision focuses on CNC machining services, offering 3-axis, 4-axis, and 5-axis CNC machining, turning and milling compound processing, CNC lathe machining, and small-batch parts processing, etc. It excels in complex-structured workpieces and can customize special fixtures and jigs for projects. Each product undergoes at least four full inspection procedures, with a quality pass rate of 99.93%. It provides high-quality small-batch processing customization services for customers, with sample production within 3 days and delivery within 7 days. 

How to Choose the Right CNC Machining Manufacturer 

When choosing a CNC processing manufacturer, in addition to inspecting its equipment configuration and technical capabilities, the following key factors should also be considered to ensure a smooth cooperation: 

1.The level of detail in the quotation: A reliable factory will clearly break down items such as material costs, labor costs, surface treatment costs, and three-coordinate inspection costs in the quotation. If it is a lump sum price, there may be a risk of additional costs later. 

2. Tolerance guarantee capability: It is necessary to inquire about the measuring equipment they use (such as whether they are equipped with a three-coordinate measuring instrument) and whether they can provide a full-size report. Relying solely on calipers for measurement usually cannot meet the requirements of precision parts. 

3. Depth of technical communication: Professional manufacturers will proactively offer suggestions for process optimization (such as adjusting tolerances, modifying draft angles, etc.) after receiving the drawings. Those who merely inquire about quantity and delivery time might be intermediaries. 

In addition, a comprehensive assessment should be made of the quality management system of the CNC processing manufacturer (such as ISO certification), its technological research and development capabilities, the response speed of after-sales service, and whether it supports customized demands. 

Chenju Precision focuses on CNC machining services, offering 3-axis, 4-axis, and 5-axis CNC machining, turning and milling compound processing, CNC lathe machining, and small-batch parts processing, etc. It excels in complex-structured workpieces and can customize special fixtures and jigs for projects. Each product undergoes at least four full inspection procedures, with a quality pass rate of 99.93%. It provides high-quality small-batch processing customization services for customers, with sample production within 3 days and delivery within 7 days. 

What is CNC machining mainly used for? 

CNC machining is a manufacturing technology that uses computer-controlled machine tools to perform operations such as cutting, drilling, milling, turning, and grinding, for the production of various parts and components. CNC stands for Computer Numerical Control, which is an automated processing method that can precisely control the processing procedures through digital control instructions, thereby achieving high-precision and high-efficiency processing. 

The application scope of CNC machining is extremely wide. From aircraft parts, automotive parts, ship parts, artificial bones, medical devices, to various industrial machinery, and even entertainment equipment, etc., all can apply CNC machining technology. Due to the characteristics of computer-controlled processing methods such as high efficiency, high precision, high quality, and high stability, CNC machining is increasingly widely used in the manufacturing industry. 

The CNC machining process involves multiple steps. First, CAD drawings need to be designed and converted into digital G codes. Then, the G codes are transmitted to the CNC machine controller, and the machining parameters are set. During the machining process, the machine tools perform cutting, boring, milling and other machining operations according to the preset G code paths, and finally produce precise parts and components. 

Overall, CNC machining is a very important manufacturing technology. It can help the manufacturing industry achieve large-scale production, efficient processing and high-quality production. With the continuous development of technology, CNC machining technology is also constantly evolving. In the future, CNC machining will be applied in more fields. 

Chenju Precision specializes in precision parts processing services, offering 3-axis, 4-axis, and 5-axis CNC machining, turning and milling compound processing, CNC lathe processing, and small-batch parts processing, etc. It excels in handling complex-structured workpieces and can customize special fixtures and jigs for projects. Each product undergoes at least four full inspection procedures, with a quality pass rate of 99.93%. It provides high-quality small-batch processing customization services, with sample production within 3 days and delivery within 7 days. 

What are the precautions for deep hole drilling processing? 

No matter what deep hole products we are processing, there are corresponding precautions, especially for deep hole drilling processing. 

Chenju Precision will introduce to you the precautions for deep hole processing: 

Due to the limitations of small hole diameter, small diameter and large length of the tool rest, it results in poor rigidity, low strength, vibration, ripples and large taper during cutting, which affects the straightness and surface roughness of deep holes. 

When drilling and reaming, if there is no dedicated equipment, it is difficult to inject the cooling and lubricating agent into the cutting area, which reduces the durability of the tool and also makes it hard to remove the chips. 

During the deep hole drilling process, the cutting state of the tool cannot be directly observed. Based on work experience, it is only possible to determine whether the cutting process is normal by listening to the sound during the cutting, observing the chips, hand vibration and workpiece temperature, and observing the instruments (oil pressure gauge and ammeter). 

4: Difficulties in chip removal. Reliable methods must be adopted to break the chips and control their length and shape to facilitate smooth removal and prevent chip clogging. 

To ensure the smooth progress of deep hole drilling and achieve the required processing quality, it is necessary to add an internal (or external) chip removal device for the tool, a tool guiding bearing device and a high-pressure cooling and lubrication device. 

Chenju Precision specializes in precision parts processing services, offering 3-axis, 4-axis, and 5-axis CNC machining, turning and milling compound processing, CNC lathe processing, and small-batch parts processing, etc. It excels in complex-structured workpieces and can customize special fixtures and jigs for projects. Each product undergoes at least four full inspection procedures, with a quality pass rate of 99.93%. It provides high-quality small-batch processing customization services for customers, with sample production within 3 days and delivery within 7 days. 

When processing, if it's a small quantity, the quality is relatively easy to control because there's no rush and we can be more meticulous. However, when it comes to large batches, it's often difficult to keep an eye on everything. Therefore, to ensure quality, some techniques are needed. Let's take a look at them below. 

Poor processing accuracy of batch precision parts is usually due to improper adjustment of the feed dynamic error between each axis during installation and adjustment, or changes in the transmission chain of each axis of the machine tool after use and wear. This issue can be resolved by readjusting and modifying the clearance compensation amount. 

When the dynamic tracking error is too large and an alarm is triggered, the following can be checked: whether the speed of the servo motor is too high; whether the position detection component is in good condition; whether the contact of the position feedback cable connector is good; whether the corresponding analog output latch and gain potentiometer are in good condition; and whether the corresponding servo drive device is normal. 

When the machine tool is in motion, overshoot may cause poor processing accuracy. This could be due to too short acceleration and deceleration times, in which case the time for speed changes can be appropriately extended. It could also be because the connection between the servo motor and the lead screw is loose or has too little rigidity. In such cases, the gain of the position loop can be appropriately reduced. 

III. Excessive Roundness Error When Two Axes Are Linked 

When processing precision parts, this kind of deformation may be caused by improper mechanical adjustment. Poor positioning accuracy of the shaft or improper compensation for the lead screw clearance can lead to roundness error when exceeding the limit. 

(2) Oblique elliptical error 

At this point, the position deviation values of each axis should be checked first. If the deviation is too large, the position loop gain can be adjusted to eliminate it. Then, check whether the interface board of the resolver or induction synchronizer is properly adjusted, and then check whether the mechanical transmission pair clearance is too large and whether the clearance compensation is appropriate. 

If there are any subsequent projects requiring precision parts processing, you can send the drawings to this email for evaluation and quotation: info1@us.cjcncmachining.com

What should be noted when using a five-axis CNC vertical machining center? 

1. Safety operation: When operating, it is essential to strictly follow the safety operation procedures to ensure the safety of personnel. 

2. Parameter Settings: According to the requirements of the workpiece to be processed, set appropriate processing parameters, including speed, feed rate, and cutting depth, etc. 

3. Clamping the workpiece: Before processing, the workpiece must be clamped correctly to ensure that it does not move or loosen during the processing. 

4. Equipment commissioning: Before commencing processing, it is necessary to commission the equipment to ensure that all its functions are operating normally. 

5. Tool selection: Select appropriate tools based on processing requirements to ensure processing quality and efficiency. 

6. Machining path planning: For complex curved surface parts, it is necessary to plan the machining path in advance to ensure a smooth and accurate machining process. 

7. Quality Inspection: After processing is completed, quality inspection of the processed parts is required to ensure that the processing quality meets the requirements. 

In general, the usage of a five-axis vertical machining center requires attention to safety operation, parameter setting, workpiece clamping, equipment debugging, tool selection, processing path planning, and quality inspection, etc. Only by strictly following the operating procedures can the processing quality and efficiency be guaranteed. 

What are the differences between three-axis, four-axis and five-axis CNC machining centers? 

Three-axis, four-axis, and five-axis CNC machining are also terms frequently heard in our industry. They sound very sophisticated, but some users may not be able to explain exactly what they are. 

It is still necessary to have a general understanding of these types of CNC machining. CNC milling machines are classified according to the number of axes they operate on. These movements determine the features of the parts that can be manufactured and also affect production efficiency and accuracy. Generally speaking, the more degrees of freedom available, the more complex the geometric shapes that can be produced. So, what are the differences between three-axis, four-axis, and five-axis? What are their respective advantages? And which products are they suitable for processing? 

Three-axis CNC machining generally refers to three linear motion axes in different directions, such as up and down, left and right, and front and back. With three-axis machining, only one surface can be processed at a time, which is suitable for dry processing of some disc-shaped parts. However, for many parts that require holes or grooves to be machined on multiple surfaces, this is a limitation. 

Two, four-axis CNC machining is achieved by adding a rotating axis to the three axes, usually a 360° rotation in the horizontal plane, but it cannot rotate at high speed. It is suitable for processing some box-type parts. Most four-axis CNC machines also allow the workpiece to rotate, which is called the B-axis. In this way, the machine can serve as both a milling machine and a lathe. If you need to drill holes on the side of a part or on the curved surface of a cylinder, four-axis CNC machining is the best choice. It greatly speeds up the processing and has high processing accuracy. 

Three and five-axis CNC machining adds one more rotational axis on top of the four-axis. Generally, it is a 360° rotation on the vertical plane. Five-axis machining can achieve comprehensive processing, allowing for a single clamping, which can reduce clamping costs and minimize the risk of product scratches and damages. 

How to choose a reliable machining manufacturer? 

One: Processing capacity is the key. 

When choosing a machining factory, the first thing to consider is the processing capacity. Processing capacity includes processing equipment, technical level and processing ability. A good machining factory must have advanced processing equipment and technical level, and be able to meet the processing needs of customers. At the same time, the processing capacity should also match the needs of customers. Different processing factories also have different processing capacities. 

II. Quality certification is a necessary condition. 

When choosing a machining factory, we also need to consider quality certification. A good machining factory must have ISO quality certification, which can prove that the machining quality of the factory has reached international standards. At the same time, we should also pay attention to the production environment, process flow and other aspects of the processing factory to ensure the reliability of the product quality. 

Three, the level of service is also very important. 

In addition to processing capabilities and quality certifications, service level is also a key factor in choosing a machining manufacturer. When selecting a good machining manufacturer, one should not only consider its processing capabilities and quality certifications, but also its service level. A good machining manufacturer should have a complete after-sales service system and be able to handle customers' problems and demands in a timely manner. 

By considering the above three aspects, we can choose a suitable machining factory. Of course, we can also search online or consult friends to obtain more information. Selecting a good machining factory not only ensures the quality of the products but also better meets the needs of customers. 

Chenju Precision specializes in precision parts processing services, offering 3-axis, 4-axis, and 5-axis CNC machining, turning and milling compound processing, CNC lathe processing, and small-batch parts processing, etc. It excels in handling complex-structured workpieces and can customize special fixtures and jigs for projects. Each product undergoes at least four full inspection procedures, with a quality pass rate of 99.93%. It provides high-quality small-batch processing customization services to customers, with sample production within 3 days and delivery within 7 days. 

How to Improve the Quality of CNC Machining for Holes 

In the modern manufacturing field, hole processing, as an important part of CNC machining, is widely applied in various areas such as mechanical parts, molds, and aviation components. Due to its direct impact on the product structure and assembly performance, it is necessary to control and optimize it from multiple dimensions during the actual processing to better meet the design requirements and enhance the overall performance of the parts. 

I. Material Properties Affect the Effect of Hole Machining 

The physical properties of different materials directly affect the processing methods and results of holes. For instance, stainless steel has a high hardness and poor thermal conductivity, which can lead to rapid tool wear and large hole diameter deviations during processing. Aluminum alloy, on the other hand, is soft and prone to tool adhesion, requiring the use of special geometry tools to improve surface quality. Therefore, before hole processing, it is necessary to fully understand the cutting characteristics of the material and rationally select the type of tool and processing parameters based on the material. 

Two, Equipment stability determines dimensional consistency. 

The geometric accuracy of CNC machine tools and the stability of the servo system are important foundations for ensuring the consistency of hole size. If there are minor deviations in the machine tool, especially in batch production, it is very easy to cause the accumulation of hole diameter errors. It is recommended to conduct necessary inspections and corrections on the machine tool before hole processing, maintain the good condition of the spindle, guide rail and fixture system, and carry out regular maintenance to ensure that the overall equipment is in a controllable operating state. 

III. Process parameter settings should be adapted to the specific requirements of each hole. 

Different hole types (through holes, blind holes, countersunk holes, etc.) have different requirements for processing parameters. For example, when processing deep holes, it is necessary to control the cutting depth and chip removal method to avoid tool breakage or chip accumulation inside the hole, which may affect the dimensional accuracy. For holes with high precision requirements, it is recommended to use a multi-process combination (such as pre-drilling + boring + reaming) approach to improve the processing quality of the hole in stages. 

Four. Fixture design directly affects positioning accuracy. 

A reasonable fixture can not only stabilize the workpiece but also improve the consistency of the hole position and the repeatability of the positioning accuracy. The fixture design should fully consider the shape of the workpiece, the direction of force and the processing sequence to prevent the workpiece from deforming or shifting due to improper clamping. For parts with complex structures or thin walls, soft fixtures or vacuum adsorption can be used to improve the clamping stability. 

V. Inspection methods are the guarantee of quality control. 

After the hole processing is completed, effective inspection and verification are required. Common inspection tools include coordinate measuring machines, pneumatic measuring instruments, and plug gauges, etc. It is recommended to implement phased inspections during the processing to adjust process parameters in a timely manner to prevent increased repair costs later. At the same time, the geometric elements such as the axis position of the hole and the offset of the tolerance zone should also be included in the quality control scope to avoid affecting assembly or fit due to omissions. 

Although precision hole processing is a routine procedure in mechanical processing, the requirements for the details of the process are rather complex. Reasonable selection of materials, stable equipment status, scientific setting of parameters, optimization of fixture structure and strict control of the inspection process can all effectively improve the quality of CNC hole processing. In a highly competitive manufacturing environment, paying attention to the execution details of each process is not only responsible for product quality but also provides a strong guarantee for enterprises to establish a stable customer reputation. 

Chenju Precision specializes in precision parts processing services, offering 3-axis, 4-axis, and 5-axis CNC machining, turning and milling compound processing, CNC lathe processing, and small-batch parts processing, etc. It excels in handling complex-structured workpieces and can customize special fixtures and jigs for projects. Each product undergoes at least four full inspection procedures, with a quality pass rate of 99.93%. It provides high-quality small-batch processing customization services, with sample production within 3 days and delivery within 7 days.