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6 Tips for Improving 3D Printing Engineering Models

2020-06-06 17:16:25 | 不老長寿
3D printing technology is provide convenient design opportunities for the next generation of rugged, complex and lightweight parts. You can make parts which are almost impossible to manufacture with traditional methods. The design of metal parts is very different from the corresponding plastic parts. There are constraints on the specific architecture of the machine and the use of functions in the metal 3D printing process.

To help you with a project, here are a few tips for improving 3D printed parts, which can be universally applied to any metal 3D printing process:
Use lattice to reduce product weight
The lattice structure helps to remove a large amount of mass from the solid part while maintaining strength. 3D printing can help you "hollow out" these areas in the wall so as not to affect the final appearance of the part.

3d-printing-engineering-models

Use conformal cooling channels
Conformal cooling is one of the great advantages brought about by 3D printing. The product can be designed as an injection mold that follows any internal contour cavity to greatly improve the cooling efficiency and the quality of the finished parts. The manufacturer can set the printing channel as needed to make it conform to any shape.

Management hole support angle
If the wall or inclined support is tilted too much from the vertical plane, it may be degraded / collapsed due to gravity.We recommend that the angle of the wall angle is greater than 45 °, and the bottom surface less than this value will especially lose resolution or collapse, and may require post-processing or other structural support.

The diameter of the management hole should be greater than 10mm
If the hole is placed vertically, the upper arc will not be supported, so it may also deform or collapse, or it may affect the function of the part.

China-3D-Printing-Engineering-Models

Removable function
Another advantage of 3D printing is the ability to construct shapes that move freely after printing, which opens up new design opportunities for complex next-generation electromechanical devices and even innovative 3D printing.

Keep the drape below 0.5mm
Draping is a feature that protrudes laterally from the direction of construction. The area of concern here is the lower surface area, which may begin to collapse if it overhangs by 0.5 mm or more. You can use concave, convex, or chamfered corners to redesign the angle between the side features and the vertical plane for self-support.

When removing metal 3D printing engineering models from the machine, the appearance will be somewhat rough. This is because they are made by welding countless tiny powdered metals together, so these parts also need to be polished.

We can provide advice on material selection, tolerance, support structure, part orientation, post-processing, etc. When you contact us to get a free quote for the project, our technical staff will work closely with you.

Processing method of automobile injection mold

2020-06-06 17:16:01 | 不老長寿
Injection mold classification: two-plate mold, three-plate mold, hot runner.
Features and occasions
Two-plate mold: the most commonly used, three-plate mold: needle point or eccentricity of the rubber pad on the surface of the finished product, hot runner: no runner, can reduce waste and increase injection pressure.

The mold processing methods mainly include forging, milling processing, drilling, grinding processing, electric discharge machining, wire cutting and so on.

EDM:
Electrical discharge machining is a special processing method that uses electro-corrosion generated during pulse discharge between electrodes immersed in working fluid to remove conductive materials. It is also called electrical discharge machining or electrical erosion machining, which is abbreviated as EDM in English. As shown below:

Cutting processing:
The basic principle of wire cutting processing is to use a moving small metal wire (copper wire or molybdenum wire) as an electrode to perform pulse spark discharge on the workpiece and feed the control system through a computer. With a certain concentration of water-based emulsion for cooling chip removal, the workpiece can be processed graphically.

1. CNC milling machines are generally used for rough mold processing and surfaces that are not very demanding, such as the back of the product-the male mold surface.

2. EDM is generally used to process curved surfaces and reinforcement ribs that are difficult to machine on CNC milling machines.

3. Wire cutting is generally used to process oblique pins that form hooks, irregularly shaped through holes, and narrow slits.

Gasketed plate heat exchanger VHX51

2020-06-06 17:15:32 | 不老長寿
VHX supply plate heat exchangers from 0.03m2 to 1.8m2 for different application requirements. We manufacture gasketed plate heat exchanger for replacement models and our own brand models, available calibre from DN25 to DN350.



Model Height Width Min Standard Length Max Standard Length Vertical Port Distance Horizontal Port Distance
VHX25 480 180 20 350 357 60
VHX51 940 330 35 600 640 140
VHX52 920 320 25 450 640 140
VHX61 835 325 50 630 625 130
VHX62 1085 325 50 630 875 130
VHX101 1084 470 120 950 719 225
VHX102 1084 470 80 640 719 225
VHX103 1235 500 115 1125 882 234
VHX104 1655 500 115 1125 1302 234
VHX151 1885 650 235 1410 1294 298
VHX152 1885 610 160 1255 1294 298
VHX201 2055 730 235 1645 1478 342
VHX301 2086 1125 215 2580 1320 600
VHX351 2920 1190 210 3360 1842 596
Available plate material: AISI304/AISI316/Titanium/Nickel/Alloy C-276/254 SMO
Available gasket material: NBR/EPDM/HNBR/NBR-HT/EPDM-HT/Viton-A/FKM/Viton-G/FKM/CR
Available connection material: rubber/stainless steel/unlined/flange

RFID VS NFC

2020-06-06 17:15:06 | 不老長寿
RFID and NFC are called modern technologies, maybe you have a smartphone equipped with NFC. So, what is the difference between RFID and NFC technology?

RFID and NFC are global wireless or contactless communication technologies. RFID stands for Radio Frequency Identification. RFID technology can realize the communication between the non-electric tag and the active reader.

The RFID system consists of a reader with an antenna and a wet inlay rfid tag. It is either active, that is to say has its own power supply, or passive. Passive tags do not have their own power supply and must be powered by the electromagnetic field generated by the reader.

Passive transponders or tags have three different RFID frequency ranges: low frequency (LF), high frequency (HF) and ultra high frequency (UHF). The reading range of LF and HF systems is usually only a few centimeters. However, UHF tags are usually readable at a distance of more than one meter. RFID is most suitable for asset tracking and positioning in logistics functions.

NFC stands for Near Field Communication, and NFC is also based on the RFID protocol. The main difference from RFID is that NFC devices can not only act as readers, but also as tags. In peer-to-peer mode, information can also be transferred between two NFC devices.

The operating frequency of the NFC system is the same as the HF RFID (13.56 MHz) system. Therefore, only the short reading range is limited. Due to the limitation of reading range, NFC devices must be very close, which is why NFC is usually used for secure communication, especially for access control or contactless payment in the consumer field.

Hairstyle trends in 2020,4 must-try hairstyles

2020-06-06 17:14:38 | 不老長寿
In the eyes of many men, it is always believed that girls with long hair are the representatives of temperament. However, with the development of the trend, girls like to challenge different types of hairstyles, so as to create a hairstyle that is most suitable for their temperament. Worrying about inappropriate hairstyles are common, so wigs came into being. Here are four of the most popular hairstyles for 2020. Friends who want to repost may wish to give it a try.

Long bob
Long bob is one of the most popular hairstyles for girls, and the shoulder length is the most suitable for modifying the face. If you are worried that your face is not suitable, you can curl the hair on both sides inwards to achieve the effect of modifying the face. The biggest advantage of this type of hairstyle is that any face girl is suitable, and you can try to make curls of different degrees on the hair to increase the fluffiness of the hair!

Marukoto
Marukoto is the most popular hairstyle in summer, giving a kind of approachable and intimate feeling. It is recommended that after tying the marukoto, the hair in the back will create an airy feeling.

Braided Hair Styling
The braided hair can create a special personality for the general long hair, such as three-hand braided hair, ponytail braided hair, half ponytail braided hair, etc. You can choose different colors of wigs for braiding, creating a different temperament.

Middle Split Head + Eight Character Bangs
Zhongfen is recognized as the most goddess-style hairstyle. Zhongfen is suitable for girls with long face, and with a bangs, it can make the forehead look shorter, highlighting the personal mature beauty of women.

The following recommends several wigs of MCMALL that can achieve the above 4 styles:

Long Grey Curly with Bangs Wigs
Long Grey Curly with Bangs Wigs Fashion New Style Heat Resistant Fiber Cos Wig

High temperature Fiber Wigs
Brown Long Straight Centre Parting Bangs Hair 31 inch Wigs Rose Net High temperature Fiber Wigs

Magic Cat company is specialized in the design,development, marketing and wholesale of various high quality wigs and hairpieces, including synthetic lace wigs,virgin human hair wigs,Jewish wigs, mono wigs, hair wefts, etc.We do everything seriously to meet our customers' desires.

The service of MCMALL:
• We offer competitive price
• We can offer OEM.ODM
• We are concertranted upon high quality products
• Our products are exported to many countries and regions in the world.