Turned Parts Supplier- Global Sourcing considerations

Turned Parts Supplier article explains the metalworking process. JKV helps achieve your turned parts requirement by reaching the right supplier.

The needs of the metal cutting operation is to increase the metal raw material removal rate with the best surface finishing and high machining accuracy for turned components. It can be achieved only by optimizing the machining process, parameters, cutting tools, and right machine or CNC machine.

A machining process that is used to remove unwanted material from a workpiece is known as Turning. A turned parts supplier uses Lathe or CNC turning machine as his most approximate component for turning operations.

During this operation for machined components, the workpiece is fixed to a work holding part of the lathe known as chuck/fixture. A stationary cutting tool is set to cut the metal part with pre-defined parameters assigned by a turned parts manufacturer. It is achieved through manual adjustment. When the lathe starts to operate, the chuck is traversed along the rotational axis of the cutting tool. This produces the desired rotational metal piece as the end-product.

Every turned parts supplier from many emerging countries like India, China, Korea, Japan, Thailand, Malaysia, Singapore, Indonesia, Vietnam, Myanmar, Poland, Hungary, Romania, Czech Republic .etc are focused to reduce the machining time. Major constraints like cutting force, cutting quality, cutting tool life and surface finishing of the turned parts.

The key focus for both turned parts supplier and buyer towards cost-effective parts production:

1. Load and Unload time: Time spent on this activity is highly critical when considering mass production. A turned parts supplier is responsible for choosing the right machines as it may impact the part cost. Here a CNC (computer numerical control) machine or CNC lathe is mostly chosen for machining operations.

2. Cut time: It is the estimate of the time required for the cutting tool bit to cut the workpiece. Tool selection plays a major role in machining time and finish quality.

3. Cutting parameters: Depends on the machine and tool selection cutting parameters may play a major role. Cutting speed and feed may not only affect the cycle time but also the quality.

4. Setup or tool replacement time: It is also referred to as non-productive time and high potential area to improve productivity. Tool replacement is not only part changeover but also tool maintenance due to damaged, worn out and sharpening.

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Major types include:
1. Straight type :
This type of turning is used to alter the diameter of the workpiece to a customer-specific requirement in terms of size and shape. It is otherwise known as cylindrical turning.

2. Tapered turning :
During tapered turning, the diameter of the workpiece is cut short from one end to the other.

3. Parting :
It is a removal process using a cutting tool in the form of a blade. The operation is employed to cut off residual parts on a workpiece after finishing.

4. Facing :
Facing on the lathe uses a facing tool to cut flat surface perpendicular to the workpiece’s rotational axis.

5. Chamfering :
The process of smoothening of a workpiece’s edges is known as chamfering.

6. Reaming :
Reaming is a process in which the inner surface of a hole is smoothened using tools known as reamers, that cut across the inner walls of a hollow workpiece.

7. Cut-off :
The process in which a part or certain amount of the workpiece is parted off as an operational requirement is known as a cut-off.

8. Threading :
The process in which helical grooves are imparted on the surface of the workpiece.

9. Boring :
The process of enlargement of holes along the inner surface of a hollow metal cylinder.

10. Drilling :
The process of making holes on a metal surface.

11. Knurling :
During this operation, diamond-shaped patterns are imprinted on the surface of the work metal.

12. Grooving :
The process of narrowing of diameter by imparting groovy cuts

13. Contour type :
Produces a three-dimensional output by following a pre-defined template.

14. Form type :
Used for the formation of special/ irregular radii across different points along the surface

15. Polygonal type :
Employed in non-cylindrical machining requirements.

Turning machines used for part production:

1. Engine lathes
2. Toolroom lathes
3. Speed lathes
4. Turret lathes
5. Chucking lathes
6. NC lathes

Below is a wide range of materials considered by turned parts suppliers ( especially for part production )

1. Brass
2. Aluminum
3. Copper Alloy
4. Steel
5. Mild steel
6. Alloy Steel
7. Stainless Steel
8. Titanium

Inventions by turned parts supplier :
1. 1864 – Morse Taper.
2. 1810 – Turning Planer.
3. 1751 – All – metal, slide rest lathe – completely equipped
4. 1751 – The first turning machine was operated along with a metal frame.

Resources :
1. Wikipedia
2. Basic Mechanical Engineering

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