CNC machines offer high precision machined components via CNC milling machines and turning machines known as CNC Machining Center or CNC Machines Center that can perform multiple machining operations with various type of cutting tools by utilizing the latest techniques and technology to give the extremely accurate and precise machined components

Monday, December 28, 2009

How To Cut Uneven Outer Cylindrical Surface

How to cut uneven outer cylindrical surface workpiece on CNC Turning Machine? In fact, machining uneven outer cylindrical surface workpiece or irregular outer cylindrical surface workpiece on CNC turning machine center or CNC lathe machine requires a fundamental understanding of the relationships between workpiece surface integrity, tool life, type of workpiece material, size of workpiece, type of tool tip and machining parameters setting such as depth of cut, spindle speed and cutting tool feed rate and how severe the workpiece outer surface condition. Of course, the tool tip material also need to be considered but I'm not going to emphasize it here because I'm using the standard tool tip, High Speed Steel (HSS) tool tip with nose radius range from 0.4 mm to 0.8 mm to perform the tuning and facing operations. In some cases, I will use the same tool tip for turning and facing operations.

how to machine and cut uneven outer cylindrical surface with cnc turning machine center

If the machining operation involve time consuming especially when performing mass production then you need to have more powerful tool tip such as carbide tool tip. In CNC turning machine center, single point cutting tool or tool tip also known as an insert because we need to insert the tool tip onto the forged tool holder and attach the tool holder on the turret system or Auto Tool Changer (ATC) before we can use it in the machining operation.

cutting irregular outer cylindrical surface

Machining the uneven outer cylindrical surface workpiece on CNC lathe machine, a rough cut need to perform. When performing rough cut on the uneven outer cylindrical surface or irregular outer cylindrical surface workpiece, it is very crucial to have a correct machining parameters setting. Incorrect machining parameters setting especially the spindle speed, feed rate and depth of cut will led to tool tip blunt very fast, crack or breakdown.

machining cylindrical workpiece with cnc lathe

machining uneven outer cylindrical surface

Here are my machining parameters setting when performing a turning rough cut on irregular outer cylindrical surface or uneven outer cylindrical surface workpiece. I am using CNC turning machine center with Centroid CNC Controller.

Tool = High Speed Steel (HSS) tool tip
Workpiece Material = Mild Steel SS41
Workpiece Diameter = 143 mm
Workpiece Length = 160 mm
Feed Rate = 5 F/M (Feed per Minute)
Spindle Speed = 200 RPM (Rotation per Minute)
Depth of Cut = 1 mm (total unused material remove from workpiece is 2 mm out of total diameter in 1 cycle of turning operation)

Finish cut parameters setting for turning operation

Feed Rate = 70 F/M
Spindle Speed = 800 RPM
Depth of Cut = 0.2 mm (total unused material remove from workpiece is 0.4 mm out of total diameter in 1 cycle of turning operation)





Video clip showing the turning process to cut and machining the uneven or irregular outer cylindrical surface workpiece on CNC Turning Machine Center.

11 Comments:

one step ahead said...
This comment has been removed by the author.
one step ahead said...

this really is great information thanks! cnc machines

Unknown said...

Nice video. Piece looks good after the cut!

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emanprinting said...

So very, very true. And each point as important as the next I’d say. Its all about working these elements together.

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seekforweb said...

thank for share, it is very important

seekforweb said...

thank for share, it is very important.....

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dancilhoney said...

I could not believe how good your software is and every time someone says wow how did you do that. laser welding

Ricky Addy said...

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Things that make us said...

Hi,

Its a nice post great image very accurate thanks for posting this..

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Unknown said...

this post very important for process cnc machining ( lathe ). thanks for your information

Prasad Ugale said...

Really informative and useful information..

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