Advantages and Disadvantages of Powder Metallurgy Gears

Whether by weight or by quantity, the proportion of powder metallurgy (PM) and metal injection molding (MIM) gears is much larger than that of PM parts in other fields. Gears, ratchets and cams are all suitable for powder metallurgy, because, in terms of powder metallurgy and MIM gears, besides low cost and high production efficiency, there are also the following advantages.

(1) The dimensional accuracy of powder metallurgy gears produced in large quantities is uniform, especially when carbide die is used.

(2) Because of the porosity in the material structure, it is helpful for the gear to run smoothly and self-lubricate.

(3) Powder metallurgical gears with blind angle can be made, which can eliminate undercutting and retracting grooves when cutting gears. When making this kind of gear by powder metallurgy, special support is needed at the blind end.

(4) Gear can be combined with other shape parts, such as cam, ratchet, other gears, etc., and integrated production can be realized by powder metallurgy process.

(5) Bevel gears, bevel gears with equal diameter, helical gears and other special tooth-shaped gears can be made.

(6) Standard involute gears can be made, which is simpler and cheaper than other methods.

(7) The ratchet wheel, like the gear, is easily manufactured by powder metallurgy and MIM. Root cutting should be avoided, and large radius should be allowed at the top and root of teeth.

Powder metallurgy and metal injection molding have the characteristics of excellent surface roughness, uniform performance among parts and self-lubrication, which is especially advantageous for making gears and cams. Sintered cams with self-lubricating properties often have more durable surfaces than grinders. Powder metallurgy gears can be formed at one time, which not only saves cost, but also improves productivity.

Harbermetal is a professional manufacturer and solution provider of metal powder injection molding process (MIM) and PM process. We provide our customers with high volume structural, functional and appearance parts of various materials with high precision, complex shapes, good performance and exquisite appearance, and we have the ability to develop ceramic and titanium alloy materials to meet the needs of different types of customers. The company mainly provides all kinds of precise and complex hardware structure parts and components to worldwide enterprises in the fields of 3C consumer electronics, new energy, drones, medical devices, automobiles, aerospace, civil consumer goods …… etc.

Powder metallurgy has lots of advantages, such as material saving, energy saving, high efficiency, suitable for mass production, good size and shape repetition, low noise and low wear when gears are running etc., so it has been widely used. The main defects are impacting resistance and poor impact function. Therefore, it is very important to enhance its strength.

A. Strength characteristics of powder metallurgy gears

1. The expansion coefficient of materials and the accuracy of dies mostly depend on the accuracy of powder metallurgical gears. Generally, the domestic die for gear within 50 diameters is between 8-9 grades, while the imported die is between 7-8 grades. If it is helical gear, it can also be a higher grade. The greatest advantage of powder metallurgy gear is that it can be produced in large quantities and has good consistency.

2. For ordinary FN0205 powder metallurgy gear, it can carry torque up to 14NM, warm-pressed parts can reach 20NM, and warm-pressed FD0405 can reach 25NM. Therefore, in the case of professional powder metallurgy design, gears weight can still be reduced by 30-40%.

B. Increasing the strength of powder metallurgical gears

1. For high strength powder metallurgical gears, they should have high density and follow the process of “pressing-preheating-reheating-heat treatment”.

2. Lower carbon content can ensure that the product has high surface hardness and wear resistance in heat treatment. Low carbon will make the product have excellent impact resistance.

3. Adding 2%-3% Ni and 2% Cu into the material can obviously improve material impact strength after sintering.

4. Compared with carburizing and quenching, carbonitriding products have excellent wear resistance. Lower carbonitriding temperature guarantees parts core strength and reduces the quenching deformation.

The Ultimate Product Creation Shortcut! High Quality in Record Time!

Product creation is the cornerstone of truly high profits for a business, online or offline. But sometimes there are just too many hassles involved in creating a good product, and then you have to figure out a way to do it fast. But don’t worry, this article will help you do just that!

So what is the best way to even begin building a product? Well, for starters, you should get to know your niche. Jeff Walker, of the famous Product Launch Formula and Product Launch Formula 2.0, suggests first getting to know your niche using email correspondence. What do the people of your niche want? What do they need? What are the common questions or concerns that you come across when talking with them? You can learn a lot about the people behind the niche and exactly what kind of product to create in a few short emails, but if you’re really short on time, create a basic survey and ask for it to be completed.

After you have interviewed your niche and discovered the kind of problems they face, it’s time to start looking towards making your product! The hardest part is actually already over. If you’re making a physical product, there might be some labor and time involved, but for information products, you just need to give your niche what they told you they wanted! How easy is that?

When compiling your information, how do you want to do it? The best ways are probably to create video and transcription of the video. You may also want to create an audio only file, but to start, just list out all the concerns, and organize them in an attractive and effective way. Create a sort of “table of contents” as famous internet marketer Russell Brunson did. Then just walk through, in front of a camera, of course, the steps needed to solve the problems of each chapter. You can directly transcribe what you have or change it up a little and add flavoring to the writing so it keeps the reader interested.

Facial Skin Care Products

Today beauty rules. Beauty products never had it better. Products ranges are increasing and so are the prices. The consumer today is asking for more. More products are being launched in the market to achieve the dream to remain young forever. The eternal dream of remaining forever young is keeping an entire industry’s cash register ringing. Facial skin care products are most in demand. The face being the first part of the anatomy of a human being which gets exposed, judged and screened, when he or she meets another is also taken most care of. There are a host of products available in the market which try and satisfy the desires of the user.The face is divided into ten zones as per the beauty industry. There is a product available in the industry to take care of each of them. The segregation of these products is based on skin type, pigmentation level, coarseness of the skin etc. Today, facial products are available for a varying combination of skin types like the dry skin, the oily skin, the normal skin and a combination skin (whatever it means). They are also available based on the climatic condition prevailing in a particular region. There are cold creams, scrubs, moisturizers and a host of other products available in the market to satiate the demand of every customer.The facial care market starts from the anti-aging cream and a cold cream. They are used to reduce the effect of age and wrinkles on the face. They hydrate the skin and make it more elastic. Next come the eye gels. It helps reduce puffiness and dark circles under the eyes through bio complex and anti oxidant ingredients present in them. Continued use of eye gels also helps to minimize fine lines and wrinkles on the applied part. Face toners, the next product which is very popular, hydrate and rebalance the skin by promoting regeneration of skin cells.Skin peeling products containing naturally present acids are next in line. They are used to peel off dead skin and help new one come up on the surface. They are available based on the type of the skin of the user.Cleansing gels are used instead of soap due to its advertised properties. These are usually available in non-soap, non-oil based cleaners variants and include vitamin C and E. They are claimed to be very useful for removing make up, and producing a vitalizing glow.Moisturizers come next and very popular in dry and cold climatic conditions. There are special formulations for day and night which provide day and night softening effect respectively. They also provide an improvement in the tone, color and clarity of the skin. They help to rebuild collagen and elastin and afford protection from the sun. Exfoliation is achieved by using facial cleansers which are available in a variety of variants. They range from scrubby kinds to soft and smooth ones.Then come the lip beautifying products like the lips stick, the all time favorite. Lip Sticks also come in a variety of tone, color and shade to suite the individual need of the person using it. Sun screens are another product that has caught the fancy of people around the world and especially in tropical and sunny locations.The beauty industry has matured and the human body is seen as a master piece of god’s creation. The face is its mirror and the facial care products the tools to keep the mirror shining and clean. The products are available today to suit the demand, range and pocket of all users. Use it to look at a better tomorrow.