Look at the new trend of national car ------ standard imported car

Good performance, high value, and low fuel consumption have become synonymous with imported cars such as Volvo, Mercedes-Benz and Scania. Many truck drivers are dreaming of owning an imported car, subject to higher prices, and many people are deterred by imported trucks. They lament: When can domestic cars be like imported cars?

With the exposure of the next-generation domestic trucks such as the liberation of J7 and Shaanxi Auto HD, we saw some prototypes of domestic trucks, flat-floor cabs, 13L engines or will become standard, it can be said that the future of domestic trucks is increasingly with Europe. Van! Here we will talk about some trends in domestic trucks.

● Larger space flat floor cab

Since the next generation of domestic trucks, the most obvious change is certainly the cab. A cab can be said to be the face of the vehicle. Especially in the current face-watching era, the value of a truck is very important.

Through the liberation of J7 and Shaanxi Auto HD and the already listed Jianghuai K7, we can see that they have a higher face value, and invariably use a flat floor cab. The flat-floor cab can provide drivers with more comfortable driving space, especially for long-distance carders and flat floor cabs.

The flat-floor cab can also bring more storage space, and the top of the cab has more storage space for the driver to store the luggage carried by the car. In addition, there will be an external tool box in the driver's cab sleeper area, the internal space will be very large, mineral water, vehicle tools can be placed inside.

According to previous information, Liberation J6 and Shaanxi Auto HD are equipped with a 13-liter engine. Liberation J7 will be equipped with its own 13-liter Xichai Aowei engine, Shaanxi Automobile is equipped with a 13-liter engine, and JAC K7 is also equipped with Weichai or heavy truck Man 13-liter engine.

With these vehicles, we can predict that the next generation of long-distance tractors will be equipped with a large number of 13-liter engines. The 13-liter engines such as Yuchai 6K13, Weichai WP13, Xicca CA6DM3, Chektron MC13, and Dongkang ISZ have already been used on existing models, so it is inevitable that the next-generation domestic tractors will be equipped with 13-liter engines.

● Higher life reliability and higher reliability

The service life of domestic trucks in the future will be longer, and there will be a greater increase in trucks than today. Many people often say that the life of a truck is the engine. Most of the next-generation domestic tractors will have a 13-liter engine. Therefore, under the same conditions, a 13-liter engine will have a longer service life than a smaller one. According to the previous data, the domestic B13 lifespan of several 13-liter engines has exceeded 1 million kilometers, and some have reached 1.5 million kilometers.

In the future, domestic trucks will have a longer life span. Not only will the life of the engine be longer, but the entire vehicle will last longer, and the service life of the transmission and rear axle will also be greatly improved. According to reports, the future design goal for the liberation of the J7 is a vehicle life of B10 of 1.5 million kilometers. It can be predicted that in the future, domestic trucks will have a higher level of performance and the reliability of the whole vehicle will be greatly improved.

The improvement of vehicle reliability can bring higher attendance to users. The 100,000-kilometer-long maintenance of aircrafts, boxes, and bridges, and the 500,000-kilometer-maintenance wheel-end technology will be heavily used in future domestic trucks. The use of these maintenance-free, long-term maintenance techniques will also greatly enhance the reliability of the vehicle.

● Better layout Make full use of space

Many of us had previously envied the import of cars, and lamented that people's chassis components were so compact and reasonable that the space at both ends of the frame was properly used. In the future, our domestic trucks will also be the same. In Shaanxi Auto HD trucks, we can see that its chassis layout has been very compact.

Before the domestic trucks were often a fuel tank, the demand for large-capacity double fuel tanks surged with the need for long-distance logistics transportation. The realization of dual fuel tanks requires greater layout of chassis components at both ends of the vehicle frame. Shaanxi Steam HD is equipped with dual tanks. The batteries are transplanted into the rear frame of the vehicle. The air handling unit is also placed inside the frame.

● Increased smarter configuration

In the future, domestic trucks will become more and more intelligent. It is understood that Liberation J7 will be equipped with BCM (Body Control Module) and VCU (Vehicle Control System) configurations, and lane departure warning and anti-rear-end warning will become standard configurations. The addition of these configurations will greatly increase the intelligence of domestic trucks and make vehicles more secure and efficient.

Judging from the information known so far, more and more domestic trucks match vehicle network systems, such as the Liberated Pilot, Zhitian of Foton, and Tianxingjian of Shaanxi Auto. These trucks can achieve fleet management through vehicle networking. Vehicle data Analysis, fuel consumption analysis and many other functions help users manage vehicles and reduce operating fuel consumption.

Looking at the development of domestic trucks in recent years, it can be said that this is a process of Europeanization. Whether it is the appearance or the chassis, the domestic trucks have become more European. With the debut of Jiefang J7 and Shaanxi Auto, we have seen the prototype and development trend of the next generation of domestic trucks. Flat-floor driving, 13-liter engine, more compact chassis layout, AMT gearbox, airbag suspension will also be used on trucks. In short, domestic trucks will become even better in the future.

CNC Milling

In general, computer numerical control milling machine (CNC) machining is a deductive manufacturing technique that programs 3-axis linkage, complex to 5-axis linkage, drives milling cutters to remove layers from solid blocks called blanks to produce finished parts. CNC milling is one of the main types of CNC Machining, which uses cutting tools that rotate at a speed of several thousand to tens of thousands of revolutions per minute (RPM) to precisely remove materials to obtain parts with complex surfaces. In addition to milling, CNC machining is also equipped with drills, boring tools, thread cutters and other tools to complete different part features at once. CNC machining produces parts based on a computer-aided design (CAD) model that is sent to a CNC machine through computer-aided manufacturing (CAM) software.

CNC Machining centers developed from CNC milling machines. The biggest difference compare to CNC milling machines is that the machining center has the ability to automatically exchange machining tools, by installing tools for different purposes on the tool magazine, the machining tools on the spindle can be changed through the automatic tool changing device in a single clamping device to achieve a variety of machining functions.

CNC milling accuracy

CNC milling centers and high-Precision Machining centers. Ordinary machining center, resolution of 1μm, maximum feed speed of 15 ~ 25m / min, positioning accuracy of about 0μm. High-precision machining center, resolution of 0.1μm, maximum feed speed of 15 ~ 100m / min, positioning accuracy of about 2μm. Between 2 and 10 μm, with a ± 5 μm more, can be called precision grade. FCE equipped with different grade and different size CNC milling center. Take in to account into both economic and quality in parallel.

CNC Finishing surface treatment

Post-processing is the final step in the CNC machining process. In a quick guide, we offer a lot of surface treatments to complete your final parts and get them to meet strict specific requirements. It should be noted that in CNC machining, post-processing is in optional, as the quality of the machined parts is already very high.

Anodized

The anodizing process allows the part to obtain excellent corrosion resistance, increasing the hardness and wear resistance of the surface. Anodizing is also the most common pre-painting treatment, which can help the painted surface to obtain good adhesion. We typically apply two types of anodizing in our production: Type II, corrosion resistant; Type III is thicker, adding a layer of wear resistance. Both anodizing processes can achieve a variety of color effects.

Polishing

Grinding polish, it offers the fastest turnaround parts and does not require post-processing. The surface finish of the grinding part is equivalent to 125 um in Ra, and the requirements can be increased to 63, 32 or 16 um Ra. Minor tool marks may still be visible on the last part.

Powder coatings

Powder Coating is thermoplastic powder spraying directly on the processed part. The sprayed parts are then baked in an oven to form a durable, abrasion- and corrosion-resistant plastic coating. In the powder coating process, its color, brightness, surface roughness can be customized.

Shot blasting

Shot peening is the high-speed spraying of beads of different hardnesses and sizes onto the surface of the part. To get different textures and brightness of the surface. Since the surface has been hit by similar forging beads, the hardness and wear resistance of the surface have also been enhanced.

Design of CNC machining

CNC machining is a universal machining process, especially parts that can be cut and machined can be achieved through CNC, from simple shape shapes to complex curved structures. However, as with every manufacturing technique, CNC machining has some design limitations. We break them down as follows to ensure that your products are optimally designed to better fit the CNC machining process.

General Tolerance

When designing parts, the size of each part is different according to the application environment, working conditions, etc., and the requirements for the machining accuracy of the workpiece are also different. Although CNC machining can achieve very high machining accuracy, we should also be aware that demanding machining accuracy and accuracy (strict product tolerances) usually mean Longer production times and higher costs. If a specific tolerance is not specified in the product design, we recommend choosing at the following levels.

The highest precision of our equipment is 0.001, and the recommended most precise machining requirements do not exceed +/-0.005mm

Interior angle

All internal vertical edges of our products need to have rounded corners instead of right angles. This is because the tools used in CNC milling are cylindrical, which means they cannot produce inner right-angled edges. The fillet required by this process is called the inner corner fillet. When designing parts, the larger the inner corner fillet, the more efficient the production process. Because of the larger fillets, larger diameter milling cutters can be used to increase milling speed, and fewer swaps can be made to improve accuracy.

Undercut

Undercut cannot be machined with standard milling cutters, so the use of retract slots for parts should be avoided when designing CNC machined parts. In particular, for non-standard inner contour shapes, customized machining tools are required, which will greatly increase processing time and costs. Secondly, if undercut can not be avoided, due to the limited length of cnc tools, the undercut can not be too deep. If they are too deep or the location is difficult to reach, they will not be able to be produced because the CNC tool cannot reach the machining location.

Chamber wall thickness

CNC machining requires your part design to meet minimum wall thickness requirements. In general, it is recommended to choose the thickest possible and avoid very thin or characteristic walls. This is because CNC tools processing thin-walled parts will cause vibration deformation, which may cause interruptions or damage, and the size is out of specification. The standard minimum wall thickness for CNC machined metals is 0.030" (0.76 mm) and for plastics is 0.060" (1.5 mm).

Thread

When designing parts, it is useful to choose the largest possible thread size because smaller taps have a higher risk of breaking during production. If possible, avoid using deep hole threads as they lead to higher production costs, especially when custom tools are required.

Metal

In principle, materials with high hardness are easier to process because better processing accuracy can be obtained, but they are limited by the hardness of processing tools, so the hardness of the generally recommended parts is 8 ~ 60HRC, and for metal materials, the hardness is greater than stainless steel Followed by cast iron, followed by copper, and finally aluminum, while the processing of ceramics, plastics, etc. belongs to the processing of non-metallic materials. Fast production time.

Polymer

Although CNC can process thermoplastics, the material properties of polymers still have many difficulties for CNC processing. First, due to poor thermal conductivity, many thermoplastics melt or bend when in contact with CNC milling machines or drill bits. Secondly, the processing of plastics, because the hardness is low, the size accuracy caused by the knife during product clamping and processing is not high. For those parts that do not have special requirements for the strength and hardness of the metal, thermoplastics can provide a cheaper alternative.

Cost optimization of machined products

Simplify product design

Simplifying product design while taking into account functionality usually saves production time and reduces production costs. Because the manufacture of complex structures and surfaces often requires complex longer passes, more layering to obtain the same fine contour quality. This means higher production costs.

Reduce cutter changes

Using the same milling machine machining features, larger and same internal fillets, can reduce the number of tools used to reduce machining time. For example, if a workpiece needs a 10mm end face milling cutter to process some features, it also needs a spherical milling cutter to process a curved surface, and a 2mm milling cutter to process a fine groove, which will require repeated tool changes and reduce the machining efficiency

Proper material selection

The choice of raw material for machining can have a significant impact on production time and costs for CNC machining. If possible, choose a material with good processability, such as brass or aluminum. For those applications that do not require metal hardness and strength, CNC machining of engineering plastics like PMMA and ABS also helps to reduce costs because the material blank is cheaper, and the processing efficiency is higher.

Tolerance and wall thickness

Higher tolerances and thinner wall thicknesses also increase THE CORRESPONDING CNC machining costs, as it takes time to achieve higher precision cutting. If your product or component can accept a larger size range, choose a lower tolerance to reduce production time and costs. The same is true for wall thickness: a larger wall thickness margin should be chosen.

Choice of surface treatment

Surface treatment is often the final stage of the CNC machining process, which can also affect the cost of your entire project. Choosing less surface treatment for your part or product can lead to better time and cost efficiency. FCE can recommend to you how to optimize the surface treatment to balance the conflict between cost and quality according to your final needs.

FCE Machining services

FCE facilities are equipped with the most advanced and highest precision 3, 4 and 5-axis CNC machines, which allows us to complete your order in record time

1. 15+ year work experience engineers

2. Fastest 5 days delivery

3. Prototypes can be machined as quickly as 1 day.

4. More than 200 metals and plastics material available in stock

5. Tolerances as low as +-0.005mm

6. ISO 9001: 2015 certified factory

7. 40+ CNC machines

8. 50,000+ machined parts per month

We cooperated with many world top 500 companies and awarded good responds always.

Cnc Milling,Cnc Milling Services,Custom Cnc Milling,Cnc Lathe And Milling Machining

Suzhou FCE precision electronics Co., LTD , https://www.sjfukeyifcesz.com