The Seco comprehensive grade and geometry range covers all material groups and allows you to achieve improved material removal rates, tool life and surface finishes.

The -WMX wiper geometry is first choice, and is a good starting point for most applications. When conditions change, there is always a productive alternative. Choose a positive wiper geometry to lower forces and maintain productivity in case of vibration problems. Choose wiper geometry as follows: -WL:For improved chip control when moving to a lowerfn/ap. -WF:Improves chip control at a lowerfn/ap. Also for lower cutting forces when vibrations occur. -WMX:Always first choice within the wide chip application area. Provides maximum productivity, versatility and the best results. -WR:When a stronger edge line is needed, for example, for interrupted cuts.

Zhuzhou Sieeso Cemented Carbide Tools Co.,Ltd. Is a Chinese company that started operations in the year 2019, located in Zhuzhou City Hunan Province where is famous in the world for its tungsten carbide industry.

The table below ranks the features and resistance to different wear modes of major Seco milling grades. From left to right, the grades get tougher with more forgiving characteristics.

Select insert size depending on the application demands and the space for the cutting tool in the application. With a larger insert size, the stability is better. For heavy machining, the insert size is normally above IC 25 mm (1 inch). When finishing, the size can in many cases be reduced. How to choose insert size

Tougher grades also have fewer issues with the thermal cracking and notch wear that can be challenges in milling. The drawback with tough grades is that they tend toward higher flank, crater wear and plastic deformation, which require an adjustment toward the harder, more wear-resistant grades shown at the top of the chart.

The insert geometry and insert grade complement each other. For example, the toughness of ​a grade can compensate for lack of strength in an insert geometry.

The entering angle, KAPR (or lead angle, PISR), is the angle between the cutting edge and the feed direction. It is important to choose the correct entering/lead angle for a successful turning operation. The entering/lead angle influences:

Newly launched grades follow a simple nomenclature format that allows you to quickly understand grade characteristics and suitable working ranges.

This chart provides an overview of most milling grades in the context of workpiece material. The chart also shows basic grade toughness, as well as geometric characteristics for sharpness and strength. Based on workpiece material, you can identify suitable grade/geometry combinations as a first orientation. You can also see the various types of materials a grade can machine as well as suitable geometry matches.

Use wiper inserts for improved surface finish with standard cutting data, or, maintained surface finish at substantially higher feed rate.

A large nose angle is strong, but requires more machine power and has a higher tendency for vibration. A small nose angle is weaker and has a small cutting edge engagement, both of which can make it more sensitive to the effects of heat.

​The insert shape should be selected relative to the entering angle accessibility required of the tool. The largest possible nose angle should be selected to provide insert strength and reliability. However, this has to be balanced against the variation of cuts that need to be performed.

A hard grade combined with a too-sharp geometry can easily chip and fracture during extreme interrupted cuts or when machining in inclusions.

Supporting inserts of different shapes, sizes and thicknesses, we developed each of these solutions with the same goal in mind: to optimize your milling operations for increased productivity.

For each product family, Seco provides a first choice of grade and geometry based on material group. This reduces complexity and provides a starting point for further optimization. The digital catalog and Seco Suggest online application provide this information.

Our General Grade Mapping chart below will help optimize your application with the appropriate combination of grade and geometry.

For historic reasons, many grades do not adopt the new nomenclature. These legacy grades will be updated as new generations launch.

Image

​Turning geometries can be divided into three basic styles that are optimized for finishing, medium and roughing operations. The diagram shows the working area for each geometry, based on acceptable chip breaking, in relation to feed and depth of cut.

The nose radius, RE, is a key factor in turning operations. Inserts are available in several sizes of nose radius. The selection depends on depth of cut and feed, and influences the surface finish, chip breaking and insert strength.

From top to bottom, the chart arranges grades by increasing toughness, with the toughest grades indicated at the bottom.

Tougher grades can handle higher chip loads and enable the use of sharper geometries, work with interrupted cuts or vibrations, heterogenous workpiece conditions, and machine in inclusions with less edge chipping and disruption.

Click on the workpiece material to find the most suitable Seco milling grade and geometry combinations for your application.

Image

Conversely, extreme thermal and abrasive conditions will adversely impact tool life on an insert with a tough grade and heavily protected geometry.

In addition to grade, the insert geometry has a tremendous impact on the machining process and the way the grade behaves and wears.

Anything is possible when it comes to machining with our broad selection of general insert milling grades and geometries.Supporting inserts of different shapes, sizes and thicknesses, we developed each of these solutions with the same goal in mind: to optimize your milling operations for increased productivity.The Seco comprehensive grade and geometry range covers all material groups and allows you to achieve improved material removal rates, tool life and surface finishes.For enhanced performance, many of our variants are coated with CVD or PVD layers on the carbide substrate.Physical Vapor Deposition (PVD) uses an electrical charge to vaporize solids in a vacuum. The vapor adds up to a 4-5 µm coating to add hardness, reduce friction and improve wear resistance for increased speeds and feeds.Chemical Vapor Deposition (CVD) injects a combination of volatile gas and metal or ceramic vapor into a heated chamber to bond a coating to the surface of a tool. The resulting 7 µm or thicker coating provides resistance to wear as well as heat.Uncoated inserts are more suited to machine non-ferrous material such as aluminium alloys. When you know the name, you know the gradeBefore you dive into the strength and the alignment of our Seco milling grades, understand the nomenclature involved.Newly launched grades follow a simple nomenclature format that allows you to quickly understand grade characteristics and suitable working ranges.For historic reasons, many grades do not adopt the new nomenclature. These legacy grades will be updated as new generations launch.Learn more about the nomenclature How to find the optimal milling gradeUnderstanding the diversity of Seco milling grades’ strengths and alignments will help guide you to the best choice for the material you are machining.Our General Grade Mapping chart below will help optimize your application with the appropriate combination of grade and geometry.This chart provides an overview of most milling grades in the context of workpiece material. The chart also shows basic grade toughness, as well as geometric characteristics for sharpness and strength. Based on workpiece material, you can identify suitable grade/geometry combinations as a first orientation. You can also see the various types of materials a grade can machine as well as suitable geometry matches.From top to bottom, the chart arranges grades by increasing toughness, with the toughest grades indicated at the bottom.Tougher grades can handle higher chip loads and enable the use of sharper geometries, work with interrupted cuts or vibrations, heterogenous workpiece conditions, and machine in inclusions with less edge chipping and disruption.Tougher grades also have fewer issues with the thermal cracking and notch wear that can be challenges in milling. The drawback with tough grades is that they tend toward higher flank, crater wear and plastic deformation, which require an adjustment toward the harder, more wear-resistant grades shown at the top of the chart.Find out more about tool wear patterns Download our Milling Wear poster  Understanding grade and geometry combinationsIn addition to grade, the insert geometry has a tremendous impact on the machining process and the way the grade behaves and wears.A hard grade combined with a too-sharp geometry can easily chip and fracture during extreme interrupted cuts or when machining in inclusions.Conversely, extreme thermal and abrasive conditions will adversely impact tool life on an insert with a tough grade and heavily protected geometry.Optimizing your tool life and application is always a balance between insert grade and geometry.For each product family, Seco provides a first choice of grade and geometry based on material group. This reduces complexity and provides a starting point for further optimization. The digital catalog and Seco Suggest online application provide this information.Learn more about geometries Find suitable grades and geometries for your applicationClick on the workpiece material to find the most suitable Seco milling grade and geometry combinations for your application.Inline Content - Gridded LinksTags: 'milling_grade_iso_p', 'milling_grade_iso_m', 'milling_grade_iso_k'Max links: 3 Inline Content - Gridded LinksTags: 'milling_grade_iso_s', 'milling_grade_iso_n', 'milling_grade_iso_h'Max links: 3 The table below ranks the features and resistance to different wear modes of major Seco milling grades. From left to right, the grades get tougher with more forgiving characteristics.CVD Milling Grade MappingCVD Grade Offering​MK1500​MP1501​MP2501​MS2500​MP3501​MM4500​Mechanical Shock​Fracture Resistance​​*​******​****​****​*****​Thermal Shock Resistance​​***​***​***​****​****​Thermal Wear Resistance​​*********​****​***​****​**​Abrasive Wear Resistance​​********​****​***​**​***​Crater Resistance​*****​****​***​***​***​**​Material Strength​K​P, K, H​P, M, K​S, M, P​P, M, S​M, S, P​ PVD Milling Grade MappingPVD Grade Offering​MH1000​F15M​MK2050​MP3000​F30M​MS2050​F40M​MP2050​Mechanical Shock​Fracture Resistance​​****​***​****​****​*****​Thermal Shock Resistance​​*****​***​****​****​***​Thermal Wear Resistance​​******​***​***​**​****​Abrasive Wear Resistance​​*********​***​***​**​****​Crater Resistance​​******​***​***​**​***​Material Strength​H, K​K, P, H​P, H, M​S, M, P​P, M, S​P, M, S​  Inline Content - SurveyCurrent code - 5fce8e61489f3034e74adc64

Understanding the diversity of Seco milling grades’ strengths and alignments will help guide you to the best choice for the material you are machining.

There are many parameters to consider when choosing turning insert. Carefully select insert geometry, insert grade, insert shape (nose angle), insert size, nose radius and entering (lead) angle, to achieve good chip control and machining performance.

Image