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.

Tips to Promoting Online Marketing Strategies to Offline Businesses

As an offline business owner I get a lot of sales calls and sales people stopping in my place of business. Everyone from stockbrokers, real estate brokers, carpet cleaners and sales people selling internet marketing strategies. In fact, I had two different IM’ers drop in last month alone.

I am a firm believer in talking with every salesperson that comes in my door (even if it is for five minutes). By following this mindset, I have not only made very good friends but also I have made great business contacts that I still have today.

Although my company runs almost all of our IM in-house I especially make it a point to talk with IM’ers walking in my place of business. Because I may end up hiring one in the future.

Anyway here is a quick overview of what I look for in the IM’s that walk in my door.

- They must be polite to everyone they met at my place of business. A salesperson should never think they can be rude the receptionist at the door and polite to the business owner. In many small businesses, the receptionist may be a family member or the spouse of the owner.

I had one guy come in demanding to see the owner of the business and said he didn’t want to talk to anyone but the owner. The reason he was so demanded was because he was an IM’er who could teach ue how to double our sales by following his Internet marketing advice. (Little did he realize I greeted him at the door.)

One thing IM’ers should keep in mind when they walk into the door of a small business is it is as if they walking into the home of the business owner. Many small business owners (SBO) live at their businesses 10-12 hours per day. Many don’t appreciate it when a person they have never met before walks into their business who is impolite or rude.

- If the owner of the business tells you they are busy and asks you to leave a business card and a brochure, please don’t continue to try to sell them. The SBO may be very busy. You may have caught him/her in the middle of an important meeting or just walking out the door. Leave a business card and make a note to follow up.

- Make the sales appointment early in the morning. I really like it when a sales person says she will meet me in my office at 7:00AM. It not only shows me she is an aggressive sales person but she also understands how hectic late morning or afternoon hours can be at a small business.

By meeting the SBO early in the morning you will have a better meeting. The phones aren’t ringing off the hook or their store isn’t packed with customers. This will allow the SBO to really listen to your presentation and fully understand what you are offering.

- If an SBO asks you the call them or meet with them at a specific time…don’t be late. Just like you, SBO’s have very business schedules. Nothing is worse than waiting for someone who is 15 minutes late for a call or meeting. If you are going to be late, give them a call and let them know.

- Don’t oversell your services. About six months an IM’er walked into my store and after five minutes of talking with him, I agreed to meet him later in the week to further discuss his IM services. Unfortunately, he oversold his services.

Life-Fitness Equipment – Understand the Concept

Once you initiate a fitness training program, a bodybuilding program or any other training regimen to amplify your health and physical fitness, you have the option of registering in a local fitness center or gym, or setting up your home gym. Home fitness equipment are currently very popular due to their convenience and easy acquisition. It is in this acquisition process of home gym equipment that the concept of life fitness equipment accrues.

Introducing Life Fitness equipment

The phrase life fitness equipment refers to the lifetime equipment acquisition whereby the equipment you buy is warranted for their life duration. In short, therefore, life fitness equipment refers to lifetime fitness equipment. Those who have encountered the term may not be totally familiar with the concept. If however you are intent on setting up a home gym for your physical fitness training of bodybuilding, it is important that you consider the importance and the essential meaning of lifetime equipment.

Purchasing lifetime or life fitness equipment means that the equipment you purchase come with a lifetime warranty. That is just about the best deal available in your local exercise equipment store.

Why Life fitness Equipment is a Viable Choice

The following are some of the reasons why you might consider buying life fitness equipment:

Fitness aids and equipment are very expensive and not the kind of investments you would wish to be buying every now and then if you can avoid it
With regular exercises, common fitness aides and equipment usually break down and become dysfunctional such that they hinder beneficial workouts unless you buy a replacement
Insurance covers for your home gym equipment is a more expensive option when it comes to break down, wear and tear
The convenience of knowing that your equipment will be serviced or replaced anytime it stops working efficiently, instead of having to carry out another odious shopping
In short, life fitness equipment might end up saving you a lot of time, money and trouble. Almost all types of equipment will and do break down with continued use. Whether it is furniture, cell phones, vehicles, machines or whatever else, breakage and wear and tear is a norm in the use of machines.

Your equipment is also as prone to breakage and wear and tear. You therefore need the assurance of a lifetime guarantee that the equipment will always be replaceable and or repairable at no additional cost. That is the essence of lifetime warranty carried by life fitness equipment.

Conclusion

Fitness equipment is a formidable investment. Setting up a home gym is something that should be covered by a warranty or insurance of sorts. In this regard, life fitness equipment is just about the best available option. Ideally, the lifetime warranty is offered by manufacturers and extended by equipment stores and other retailers within your local setting. Ensure that you check for such provisions when buying your home gym equipment and specifically ask for the equipment that carries with it a lifetime warranty. Additionally ensure that:

1. The price is acceptable in comparison with the normal pricing of the equipment i.e. It should not go beyond 20% of the normal price

2. The condition of the equipment while at the fitness equipment store should be brand new and functional

3. The lifetime warranty documentation properly signed by the equipment store as provided for by the manufacturer

4. The terms spelt out in the lifetime warranty to include replacement and repairs without excluding your typical usage of the equipment i.e. Some contracts will exclude electrical-fault-caused damage from warranty cover which is a trick you must avoid

5. The reliability and or dependability of the local store or manufacturer to follow through on their word based on their track record, customer support and customer satisfaction history

There is a link between a bodybuilding lifestyle and optimal health. Once an individual strikes that link, he or she attains optimal physical fitness as a by-product. With the right information, you can easily set up a training regimen that is centered on bodybuilding health. From this program, muscle mass and strength will accrue and with it physical fitness.