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TD Series Cutting and Grooving Blades | A Detailed Comparison of TDC C-Groove and TDJ J-Groove Blades
time：
2026-01-23 10:44
source：
Lizhou
What is a cutoff groove blade?
Cutting grooves These are two very common metal cutting processes that are often confused with each other, and they are primarily used on lathes or CNC lathes. CNC Lathe).
Cutting grooves TDC and TDJ The difference?
TDC and TDJ The primary difference lies in the groove design. During cutting and grooving operations, issues such as tool adhesion, poor chip evacuation, and chipping of the cutting edge have consistently been common problems that affect machining efficiency and stability. Lizhou Tools. TD This series of carbide cutting and grooving blades, with their various groove profile designs, offer you a more stable and worry-free solution for cutting and grooving operations.
TDC is belonging to C Slot design:
This type of groove design offers greater resistance to chipping and ensures safer grooving. C The groove-cutting and slotting blade features raised cutting edges on both sides and an enhanced negative rake angle design, significantly enhancing its overall strength and chipping resistance. Even under continuous or complex machining conditions, it can still maintain stable cutting performance. C The groove-type structure is not only suitable for cutting operations but also an excellent choice for applications such as external cylindrical grooving.
TDJ is belonging to J Slot design:
TD In the series J The groove-cutting blade features a sharp cutting edge that minimizes cutting resistance, making it less likely to form built-up edges during cutting operations. It is particularly well-suited for continuous cutting and mass-production applications.
For customers seeking to achieve cutting-edge efficiency and stability, J The groove structure can significantly reduce machining resistance and improve the smoothness of the cutting process.
Common problems with cutting grooves?
Why is it easy to cut?
During machining, the narrow cutting blade of a grooving tool experiences concentrated stress and has a limited cutting zone with cramped space, making it difficult for chips to be discharged and increasing the likelihood of chip buildup. Additionally, in the machining of steel or stainless steel parts, built-up edges tend to form easily. Coupled with insufficient tool shank rigidity or improper cutting parameters, the cutting impact is amplified, ultimately leading to chipping or fracture of the cutting blade.
Why is the surface finish of the groove poor?
The poor surface finish of grooves cut by groove-cutting blades is mainly due to either insufficient sharpness of the blade edge or micro-chipping on the blade edge, causing the cutting process to shift from actual cutting to mere compression. At the same time, the narrow groove space hinders smooth chip removal, leading to repeated friction against the groove walls and making the surface prone to tearing. Furthermore, if the blade width does not match the groove dimensions or the cutting parameters are inappropriate, this will further degrade the surface finish of the groove.
Multiple coatings to match different material processing.
To meet the processing needs of different metal materials, Lizhou. TD The series offers a variety of coating options:
Gray-black coating: Suitable for machining carbon steel and conventional steel parts, highly versatile, and provides stable cutting performance.
Bronze Coating: Optimized for stainless steel machining, effectively reducing the risk of tool adhesion and extending blade life.
By reasonably selecting the chip-breaker geometry and coating, TD The series can be widely used for cutting and grooving common materials such as carbon steel and stainless steel.
Applicable processing scenarios:
TD Cutting grooving blades are widely used in:
Lathe and CNC lathe parting-off operations
External cylindrical groove and relief groove machining
Batch Turning Production of Parts
Lizhou Cutting Tools | Reliable Manufacturer of Cutting and Grooving Blades
As a professional cutting tool manufacturer, the LIZHOU brand has long been dedicated to the R&D and manufacturing of turning inserts for parting and grooving as well as comprehensive turning solutions. TD The series not only focuses on cutting performance but also strives to help customers reduce chipping and tool sticking, achieving a balance between stable machining and cost control.
Lizhou TD Series of cutting and grooving blades—perfectly matched to each processing step, making machining more efficient and hassle-free.
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