Turning Tool Coolant Channel Layout for Insert Seat Cooling
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Solution Overview
Problem
Existing turning tools face challenges in longevity, particularly during long-duration longitudinal turning of metal workpieces, as they are prone to plastic deformation and temperature-induced tool body deformation, which limits their usage time.
Innovation Solution
A turning tool design featuring a tool body made from steel with a cemented carbide insert and an internal coolant channel that directs coolant towards the insert seat, reducing deformation risks and enhancing temperature management, allowing for extended use in both longitudinal and perpendicular machining directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a turning tool is used for long-duration longitudinal turning, then productivity is improved, but the tool body undergoes plastic deformation and temperature-induced deformation, reducing reliability
Solution Approach 1:
The coolant channel outlet is positioned to direct coolant toward the insert seat before the cutting operation generates excessive heat. This preliminary cooling action prevents temperature rise and deformation during long-duration cutting, allowing extended productivity without compromising tool body reliability
Solution Approach 2:
Coolant serves as an intermediary substance between the coolant channel outlet and the insert seat. The coolant absorbs heat from the insert seat and surrounding areas, preventing temperature-induced deformation of the tool body while enabling continuous operation for extended periods
2Temperature
If coolant is directed toward the insert seat, then temperature management is improved, but the complexity of the tool body structure increases
Solution Approach 1:
The coolant channel outlet is positioned to deliver coolant locally to the insert seat area, which is the specific region requiring temperature control. This localized cooling approach manages insert seat temperature effectively without requiring complex cooling systems throughout the entire tool body
Solution Approach 2:
The cooling system utilizes hydraulic principles by channeling liquid coolant through an internal passage to the outlet. This simple hydraulic approach enables effective temperature management of the insert seat without mechanical complexity, relying on fluid flow rather than moving parts or complex mechanisms
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The tool body's reduced risk of deformation and improved temperature management extend its operational time, enhancing performance and wear resistance during long cuts, especially in longitudinal turning of metal workpieces.
Implementation Method 1
A coolant channel is formed in the tool body, extending between a coolant channel inlet and a coolant channel outlet. The coolant channel outlet is arranged to direct a coolant stream towards the contact surface of the insert seat, such that the temperature of the insert seat and especially the contact surface is reduced.
Data Source
Figure 1~2
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Figure 8~11
AI summary
A turning tool (1) comprising a tool body (2) and a turning insert (3), the turning tool (1) comprising an insert seat (4) in which insert seat (4) the turning insert (3) is mounted, the insert seat (4) comprising a bottom surface (5) and a side surface (6), the side surface (6) comprising a first surface (13) and a second surface (14), wherein the first surface (13) comprises a contact surface (19), wherein said contact surface (19) is in contact with a portion of the side surface (9) of the turning insert (3), the tool body (2) comprising a coolant channel (10), the coolant channel (10) extends between a coolant channel inlet (26) and a coolant channel outlet (11) opening into a void (24) between the side surface (9) of the turning insert (3) and the first surface (13) of the side surface (6) of the insert seat (4).