COGO TOOL's technical info4 - Selection and Usage

■ Proper selection of the End Mill
For use the End mill more economically and efficiently, select the proper End Mill by considering the shape and hardness of work mate-rial and processing efficiency.
Therefore, the diameter, number of the flute, length of the flute, helix angle and materials of the End Mill should be considered.

• Raw Material of Toll

For the cutting process from the structural steel, nonferrous materials to cast iron, Cobalt 8% HSS(SKH 59 grades) is the best. For more efficient processing and longer durability, selct the coating End Mill, power metallurgy HSS End Mill or the Carbide End Mill.

• Number of the flute

important factor of the performance of the End Mill

-2flutes : By the wider chip pocket, the chip can be discharged smoothly but the section size of the tool is narrow so its rigidity reduces. It can be used in the slotting.

-4flutes:By the narrower chip pocket, the chip cannot be discharged freely but the section size of the tool is wide to its rigidity expands. It can be used in the side cutting mainly.

• Length of the cutting part

If working by decreasing the cutting part length, the rigidity can be increased. The projection length of End Mill influences in the rigidity so avoid to increase the length unnecessarily.

COGO TOOL TURKEY inc.

COGO TOOLs also has an office in Turkey.

COGO TURKEY inc.
Rami Kisla Cad. Metal Han NO:83/11
Topcular 34055 ISTANBUL - TURKEY
Phone : ++90 212 544 40 00
FAX : ++90 212 544 40 19

COGO TOOL's Delegation activities

 Our CEO, Jae-gen Lee participated in KOREAN Business Delegation to Eastern Europe(Bulgaria, Croatia, Slovenia) on June, 2010.

 Our CEO, Jae-gen Lee participated in KOREAN Business Delegation to India on January, 2010.

 Our CEO, Jae-gen Lee participated in KOREAN Business Delegation to Uzbekistan, Turkey on June, 2010.

SBA Business Delegation in Beijing.

COGO TOOL's technical info3

• Upward and Downward cutting

Comparison 

Back lash of the feed screw	No influence in cutting	The black lash has to be removed completely
Rigidity of the structure	No influence in case of  the low rigidity	The high rigidity is needed for the stroke
Durability of the cutting edge	It’s disadvantageous because it lifts the structure upward and the force goes up	Because the force comes down and presses the structure but when it’s not installed completely, the materials can be flown to the sky with that force.
Influence of the bulit-up edge	Shorter durability of the flank wear with the fiction during insertion	Longer durability
Friction resistance	Rather low	The friction force during the insertion is low but its stroke can be high to the downward
Finished surface	For the higher friction resistance during insertion, the force to lift upward is high	There is no glossy surface but the rotation resistance during the low feed cannot be occurred so all the surface is rather glossy and even. The finished surface is more glossy than the upward cutting but in case of the soft materials the finished surface can be worsened.
Cutting condition		It raises the cutting speed and feed more than the upward cutting. It’s possible to cut the heavy materials

• Coolant

The coolant is to improve the lubrication, cooling and anti-fusion property so increase the durability and grade of the processed surface, and removes the cutting heat, reduces the generation power and add the productivity like the cleansing effect of the micro chips.

COGO TOOL - Midas Drilling Video

COGOTOOLS' drilling video.


MIDAS KTD DRILLING VIDEO
(KTD-30040D)

-Drilling diameters are from 12.5mm to 50mm and a various of drilling depth is available(2D,3D and 4D).
-Cost-dffect by using 4-edge inset.
-A wide range of drilling such as double plates and inclined surface is possible.
-The especially treated surface of body makes wear resistance much better and tool life much longer.



The Cogo Tool Inc.

#1108, Hoseodae Venture Tower 319,
Gasan-Dong, Geumcheon-Gu,Seoul, South Korea
Telephone : 82-2-2038-0845
FAX : 82-2-2627-5945
E-mail : cogotool@gmail.com
Website : cogotool.com

Helix End Mills

COGO TOOl's Helix End Mill.

■ 4 SEM - 4 Flutes High Speed 45 Helix End Mill
- High speed end mills suitable for HRC62, SUS series and high hardened steels
- Outstanding discharge of chips and performance at high speed cutting as the appearance of High Helix
- Ultrafine particles carbide alloy/TISIN Coating

■ 6 SEM - 6 Flutes High Speed 45 Helix End Mill
- High speed end mills exclusive for high hardened steels
- The optimum performance at cutting the side- Ultrafine particles carbide alloy/TISIN Coating
- Ultrafine particles carbide alloy/TISIN Coating



The Cogo Tool Inc.

#1108, Hoseodae Venture Tower 319,
Gasan-Dong, Geumcheon-Gu,Seoul, South Korea
Telephone : 82-2-2038-0845
FAX : 82-2-2627-5945
E-mail : cogotool@gmail.com
Website : cogotool.com

KOMAF - Korea Machinery Fair 2011

• why KOMAF

KOMAF(Korea Machinery Fair), which has been held biennially since 1977 as a leader of machinery exhibition, will be held on the largest scale from Sept. 28th to Oct. 1st in 2011 at Korea International Exhibition Center (KINTEX)
As the best machinery fair in Korea, KOMAF 2011 brings together the leading machinery companies in one location and makes easy for you to promote your new products and research innovative technologies.
Especially, KOMAF 2011 will be jointly held with other exhibition related to the machinery. This joint exhibition will be the biggest machinery fair in Asia with 10,000 sq.m exhibition space, 2,000 companies from over 40 countries, and about 150,000 visitors.
KOMAF 2011 is the ideal place to reach target customers in Korea market. You will be able to get the great chance to introduce your new and innovative products and improve your potential performance at KOMAF 2011. KOMAF 2011 is divided into 9 specialized categories, which are Motion Control & FA(Factory Automation) Show Korea,
Machine Tool Show Korea, Pneumatic & Hydraulic Technology Show Korea, Test & Measurement Show Korea, Parts & Materials Show Korea, Plants & Equipment Show Korea, Environment Technology Show Korea, Air-Conditioning & Refrigeration Technology Show Korea, Transport, Cargo & Logistics Show Korea as well as  Foreign Pavilion.

Exhibiting at Korea's largest machinery fair, KOMAF 2011 gives you the opportunity to :
- Build your brand and Launch new products at Korean market
- Gain a strong foothold in Northeast Asia such as China, Japan, Korea, and so on.
- Preview innovative & experimental machineries
- Network with other machinery professionals
- Gain valuable ideas from over 1,000 leading companies from 40 countries


Come and participate in KOMAF 2011, which is the industry's 'must attend' fair in Korea. You will be able to maximize your exposure and improve your business performance at KOMAF 2011.

visit KOMAF website and see more information.
http://2011.komaf.org/eng

Corner Radius End Mills

- Corner Radius End Mills

■ 2RCR
 - Rib corner R end mills for high speed
 - Ultrafine particles carbide alloy/TISIN Coating

■ 2CNR
- Outstanding performance at cutting nonferrous alloy and aluminum alloy as the         appearance of corner R
- Easily deep cutting with Long Shank type
- Ultrafine particles carbide alloy/TISIN Coating

■ 4CNR
- High speed end mills suitable for HRC62 and high hardened steels
- Outstanding performance at high speed cutting as the appearance of corner R
- Easily deep cutting with Long Shank type
- Ultrafine particles carbide alloy/TISIN Coating.

COGO TOOL's technical info

■ Classification of the shank type


we produce the appropriate products under the ANSI(American standard) and DIN or BS(European standard) because of the export regulation and the shank types are the following.

• Straight shank : the product with constant cylinder-type of shank part.
• Flat on shank : the product that carved out according to the set screw on the shank part.
• Threaded shank : the product that made the screws in the shank part.
• Combination shank : the product that chuck more powerful to the shank part.
• Taper shank : the product which the shank part forms the trapezoid shape.
• Whistle notch shank : the product that titled groove is carved out  in the shank part.

■ radial cutting part

<Eccentric type > 

<Concave type>

<Flat type>

 It needs the secondary relief in case of the diameter is large.

In the international trend the eccentric type is used widely and our company mainly produces the eccentric type except for the special application.

The advantage is to maintain the intensity of the cutting edge in the constant relief indicator drop amount, and the tool life is increase in the constant relief angle.


■ Classification of the End Teeth type

• 2 flute

• 3 flute

• 4 flute

• 5 flute

• 6 flute

The Cogo Tool Inc.

#1108, Hoseodae Venture Tower 319,
Gasan-Dong, Geumcheon-Gu,Seoul, South Korea
Telephone : 82-2-2038-0845
FAX : 82-2-2627-5945
E-mail : cogotool@gmail.com
Website : cogotool.com

COGO TOOL's technical info

■ End mill
It's a consumable cutting tool of the precision process for metal mold, machine tool parts, and various electronic equipment parts, and etc.

• Product for which many varieties of a small amount and technological specialization are necessary. 
• product that has a characteristic which has to be discarded after using in spite of expensive one.

■ End mill each part name

• Outside diameter : the maximum external diameter of the cutting edge of End mill.
• Shank diameter : the maximum external diameter of the shank part of End mill.
• Shank length : length of the support in the milling machine.
• Length of cut : length of the cutting part of End mill.
• Overall length : whole length of the cutting part, shank part and neck part at the center line of the End mill.
• Number of Blades : It refers the number of the cutting blades. There are various type such as 1,2,3 or 4 blades but generally 2,3,4,5 and 6 blades are commonly used.

• Rake angle : It's very important part in the cutting performance of the End Mill. It means the angle between the hollow surface and the assumed center line when seeing the bottom end teeth from straight ahead.
• Radial primary relief : It means the first angle of the radial cutting part that is important in cutting performance as the rake angle.
• Land width : whole width of both radial primary and secondary reliefs.
• Flute : It's used in the passage that chip can be passed during the cutting process. Also, when this flute gets smaller, it influences the whole cutting process because chip cannot discharged smoothly.

■ Types of the cutting part

-Square End Mill, Ball Nose End Mill, Taper End Mill, Taper Ball End mill, Center Cutting, End Cutting

end mill index

This is our end mill index. 

We have over 5600 tools for various choice. COGO TOOL's cutting tools are available exclusively through industrial distributors. Our extensive product line consists of thousands of standard tools. Many new high performance and specialty tools have been added. COGO TOOL have the most advanced production facilities as well as the best materials and distinguished manpower in order to produce ultra precision tools. And also, as making sure of strict quality test, we make our effort to meet customers satisfaction.

Order number and specification as above can be changed without notice due to improvement of quality.

 

 

 

milling cutter tools

What's milling cutter ?

Milling cutters come in several shapes and many sizes. There is also a choice of coatings, as well as rake angle and number of cutting surfaces.

-Shape: Several standard shapes of milling cutter are used in industry today, which are explained in more detail below.


-Flutes / teeth: The flutes of the milling bit are the deep helical grooves running up the cutter, while the sharp blade along the edge of the flute is known as the tooth. The tooth cuts the material, and chips of this material are pulled up the flute by the rotation of the cutter. There is almost always one tooth per flute, but some cutters have two teeth per flute. Often, the wordsflute and tooth are used interchangeably. Milling cutters may have from one to many teeth, with 2, 3 and 4 being most common. Typically, the more teeth a cutter has, the more rapidly it can remove material. So, a 4-tooth cutter can remove material at twice the rate of a 2-tooth cutter.


-Helix angle: The flutes of a milling cutter are almost always helical. If the flutes were straight, the whole tooth would impact the material at once, causing vibration and reducing accuracy and surface quality. Setting the flutes at an angle allows the tooth to enter the material gradually, reducing vibration. Typically, finishing cutters have a higher rake angle (tighter helix) to give a better finish.


-Center cutting: Some milling cutters can drill straight down (plunge) through the material, while others cannot. This is because the teeth of some cutters do not go all the way to the centre of the end face. However, these cutters can cut downwards at an angle of 45 degrees or so.


-Roughing or Finishing: Different types of cutter are available for cutting away large amounts of material, leaving a poor surface finish (roughing), or removing a smaller amount of material, but leaving a good surface finish (finishing). A roughing cutter may have serrated teeth for breaking the chips of material into smaller pieces. These teeth leave a rough surface behind. A finishing cutter may have a large number (4 or more) teeth for removing material carefully. However, the large number of flutes leaves little room for efficient swarf removal, so they are less  appropriate for removing large amounts of material.


-Coatings: The right tool coatings can have a great influence on the cutting process by increasing cutting speed and tool life, and improving the surface finish. Polycrystalline Diamond (PCD) is an exceptionally hard coating used on cutters which must withstand high abrasive wear. A PCD coated tool may last up to 100 times longer than an uncoated tool. However the coating cannot be used at temperatures above 600 degrees C, or on ferrous metals. Tools for machining aluminium are sometimes given a coating of TiAlN. Aluminium is a relatively sticky metal, and can weld itself to the teeth of tools, causing them to appear blunt. However it tends not to stick to TiAlN, allowing the tool to be used for much longer in aluminium.


-Shank: The shank is the cylindrical (non-fluted) part of the tool which is used to hold and locate it in the tool holder. A shank may be perfectly round, and held by friction, or it may have a Weldon Flat, where a grub screw makes contact for increased torque without the tool slipping. The diameter may be different from the diameter of the cutting part of the tool, so that it can be held by a standard tool holder.

- Chip formation during climb milling.

- Conventional milling. Point A may become work hardened.

(source : google)

Exhibitions in Jakarta

COGO TOOL went Jakarta to participate an exhibition!

We attend many exhibitions throughout the year providing carbide end mill products demonstrations and case studies of how we have helped our customers around the world. There were many other companies and customers, We shared the information about end mill products and what's new in tooling industry. We hope many people had great time with our products.  

COGO TOOL will attend more exhibitions so that we could know the trends in mechanical industry and what customer's demands.

The Cogo Tool Inc.

#1108, Hoseodae Venture Tower 319,
Gasan-Dong, Geumcheon-Gu,Seoul, South Korea
Telephone : 82-2-2038-0845
FAX : 82-2-2627-5945
E-mail : cogotool@gmail.com
Website : cogotool.com

What is End mill?

COGO TOOL is a end mill company that offer many kinds of mechanical tools. COGO TOOL High Speed End Mills series are produced with special coating process for maximizing anti-abrasion and nano-ultrafine particles carbide alloy, which show the excellent performance of high speed and efficiency.

end mill is a type of milling cutter, a cutting tool used in industrial milling applications. It is distinguished from the drill bit, in its application, geometry, and manufacture. While a drill bit can only cut in the axial direction, a milling bit can generally cut in all directions, though some cannot cut axially. End mills are used in milling applications such as profile milling, tracer milling, face milling, and plunging. 

<Aluminium Titanium Nitride AlTiN) coated Endmills, coated using the Cathodic arc deposition technique>

End mills are typically made on CNC (Computer Numeric Control) controlled Tool and cutter grinder machines under high-pressure lubricants such as water, water-soluble oil, and high-flashpoint oil. Grinding inside the machine is accomplished with abrasive wheels mounted on a spindle (and in some cases, multiple spindles). 
Depending on what material is being ground, these wheels are made with industrial diamond (when grinding tungsten carbide), cubic boron nitride (when grinding cobalt steel), and other materials (when grinding, for instance, ceramics), set in a bond (sometimes copper).

(source : google)

The Cogo Tool Inc.

#1108, Hoseodae Venture Tower 319,
Gasan-Dong, Geumcheon-Gu,Seoul, South Korea
Telephone : 82-2-2038-0845
FAX : 82-2-2627-5945
E-mail : cogotool@gmail.com
Website : cogotool.com

TOOL TECH KOREA EXHIBITION

TOOL TECH  is a tool-specialized exhibition only one in Korea that exhibits high speed steel tools, carbide tools, diamond tools in addition to working tools, electric power tools, pneumatic tools and other relevant tools. It takes in place simultaneously together with Korea Machinery Fair(KOMAF), Korea Metal Week, Korea International Printing Machinery & Equipment Show(KIPES), Seoul International Electric Fair(SIEF), so that it will provide its participants with everlasting synergy effect.

http://www.tooltechkorea.com/english

TOOL TECH has been designated as a "Promising Exhibition" by Korean government since 2003, "Supporting Exhibition" by Gyeonggi province and "Int'l Endorsed Exhibition" by Ministry of Knowledge Economy(MKE). That means Korean government acknowledged that TOOL TECH is high level of professional and hopeful exhibition.

Korea ranks at the 5th in the world in the motor industry that is a front/rear base of the tool industry; at the 5th in the machine tool industry; and the 5th in the mold industry. Korean tool market will be the center of Asian tool market because it is forecasted to remarkably grow more than 10% a year in various industries including shipbuilding, air, semiconductor, electricity, electronics, construction, material industry and etc. In this situation, TOOL TECH  will be a good chance for you to meet the demands of Korean tool market and relevant machinery markets, which show their potentiality growing 10% in average every year.

ABPF holder and insert

ABPF holder

COGO TOOL has various type of cutting tools and holders, inserts.  

This is 2 types of MIDAS ABPF holder, 6 inserts  made of carbide, 4 steel inserts made of steel.  

how to install insert

The marking part of insert is located on the top and installed in holder

MIDAS insert

1. High precision (±0.01 below)
2. Use one holder
3. Compatible with other products
4. 30% cost reduction compared with Japanese same type inserts
※Utility Model No. 0355943

The Cogo Tool Inc.

#1108, Hoseodae Venture Tower 319,
Gasan-Dong, Geumcheon-Gu,Seoul, South Korea
Telephone : 82-2-2038-0845
FAX : 82-2-2627-5945
E-mail : cogotool@gmail.com
Website : cogotool.com

Introducing Seoul!

Seoul is...

Formal Name: Seoul Metropolitan City

Area: 605.25km²

Population: 10,464,051

Language: Korean

Religion: Buddhists 25%, Christians 25%, other relegations 50%

Website : www.visitseoul.net

Story of Seoul

The name of Seoul originates from the word soseon beol, soseon ul. In Joseon Dynasty, it was called as Hanseongbu, Hanyang. It was after the independence on Aug 15, 1945 when Seoul became its formal name. Seoul hosted the 1988 Olympic Games and the 2002 FIFA World Cup Games, making its presence felt on the global map.

The Cogo Tool Inc.

#1108, Hoseodae Venture Tower 319,
Gasan-Dong, Geumcheon-Gu,Seoul, South Korea
Telephone : 82-2-2038-0845
FAX : 82-2-2627-5945
E-mail : cogotool@gmail.com
Website : cogotool.com

COGO TOOL's certifications

 COGO TOOL is one of best tooling companies in South Korea with our precision and excellent quality products. We have certified by many institutions and government organization. These are the certifications that prove COGO TOOL is offering the best machinery materials and providing high class service. We look forward to supply our products to customers and  produce more satisfied tools to meet our customers requirements. 

The Cogo Tool Inc.

#1108, Hoseodae Venture Tower 319,
Gasan-Dong, Geumcheon-Gu,Seoul, South Korea
Telephone : 82-2-2038-0845
FAX : 82-2-2627-5945
E-mail : cogotool@gmail.com
Website : cogotool.com