How to choose threaded inserts correctly?

Threaded inserts are essential components in mechanical and industrial equipment. They are threaded protrusions usually made of metal that are designed to be embedded or inserted into objects to provide a threaded hole or anchor point. Threaded inserts are used to create durable and secure connections in a variety of applications, including automotive, aerospace, and medical industries, among others.

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When selecting a threaded insert, it is essential to consider several factors to ensure that you obtain the most appropriate insert for your application. The following are some essential tips for selecting threaded inserts.

1. Application Type

Before selecting a threaded insert, you need to evaluate the application's requirements to ensure that you get the right insert type. The application type refers to the material you are inserting the threaded insert into, the strength, the size, and the environment. Ensure that the threaded insert you select can withstand the application's environment and usage.

2. Material

Threaded inserts are manufactured from various materials, including brass, steel, stainless steel, aluminum, and plastic, among others. The material you choose should have properties that suit the application requirements, like corrosion resistance, strength, and thermal resistance.

3. Type of Threaded Insert

Threaded inserts come in various types, thread forms, and installation methods. Each type of insert has its strengths and weaknesses. Therefore, choose the insert that suits your application. Some of the common threaded insert types include:

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' Wire thread inserts
' Threaded bushings or helical inserts
' Knurled and press-fit inserts
' Self-tapping inserts
' Thread cutting inserts

4. Load capacity

When choosing a threaded insert, you should consider its load capacity, which refers to its ability to carry weight. The load capacity of the threaded insert should match the weight and force exerted on it in the application.

5. Thread size

Thread size refers to the diameter of the threaded insert and the pitch or thread spacing. The thread size should match the size of the insert and be compatible with the mating nut or bolt.

In conclusion, selecting the right threaded insert for your application is critical to ensure optimal performance and durability. Always consider the application type, material, type of threaded insert, load capacity, and thread size when making your selection. With the right selection of threaded inserts, you can achieve secure and reliable connections and enhance the functionality of your equipment.

Another question again, this time concerning threading inserts.

Has anyone any experience with them?

I do know a few things from a bit of research. For what we do, basically there are two sizes, 11 and 16, then 60 degree and 55 degree followed by right and left hand and maybe internal and external, or can they be used for each type of threading?

There are other sizes available plus many different shapes including Acme, but I am just interested in the basic ones above and proceed from there.

The sort of info I am after is how they are used, by the looks of the holders they are used by swinging your topslide over to half the angle, do they cut nicely profiled threads? Are they robust or is it changing to a new tip after each main job?

There is a reason for this, it is getting much more difficult for me to sharpen cutters, I can't do it by hand any more and even grinding using my surface grinder has become a large chore, if I can get away with just dropping in a pre made tip, it will help me no end in the future. In fact, I already use a lot of tipped tooling and getting good results, if these will be acceptable, then it will be the icing on the cake.

I have got my milling cutters sorted, it is just lathe tooling now, and I will modify or make a new swing up tool to take any holders that I start to use for threading.

Thanks in anticipation.


John

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