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TOKYO BYORA KOKI PRODUCT CATALOG
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TOKYO BYORA KOKI Co.,Ltd.
0.18mm diameter 4 ㎜ deep die Dies and their products. The one on the left hand side has axis diameter of
0.6mm. The one on the right has axis diameter of about 1mm.
Product Sample ①:Heading dies for micro parts
Material: WC-Co
Technology:Ultra-fine・deep-hole processing using EDM ⇒ Mirror finish by lapping
Products:Screws, rivets, lead pins, connector pins, contact points etc.
Note: Able to fashion up to 0.15mm hole diameter. Able to provide up to 5-10mm depth precision holes.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample ②:Various Heading Dies Material:WC-Co
Technologies: Ultra-precise, irregular, and deep-hole processing by wire-cut and EDM ⇒ Mirror finish provided by lapping
Products:Screws, rivets, parts etc.
Note: No problem even if hole shape is irregular, stepped, or deep.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample :③ Special Heading Dies Material: WC-Co
Technology: Die-sinking and irregular micro-processing using wire-cut EDM ⇒ Mirror-finish by lapping
Products: Pins, contact points, and parts
Structure: (Left) Diameter of outer circular hole is 5mm. This die has a seamlessly integrated structure and does not involve nibs.
(Right)2-part dies made of opposing shapes. The parts that come in contact with products are created in precision so that there
will be no space in between, preventing burrs when manufacturing products with dies.
TOKYO BYORA KOKI Co.,Ltd.
Nib: Upper half has circular hole and lower half has an
o-shaped hole. Four rectilinear holes are formed by combining four parts.
Product Sample④:Nib of combination dies
Material: WC-Co
Technology: Irregular ultra-precise micro machining by wire-cut and die-milling EDM ⇒ Mirror finish provided by lapping
Products: Screws or parts with complex configuration
Note: Nib can be replaced when broken.
We can manufacture ultra-thin parts of 0.5mm thickness. We can also create paired dies stacking several nibs.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample ⑤: Four-part special dies
Material: SKH51
Technology: Ultra-precise micro processing by wire-cut and EDM ⇒ mirror finish by lapping
Structure: Special dies of four-part nib type. Effective part is 6.31 mm.
Photo on the right shows the nib and jigs set up.
TOKYO BYORA KOKI Co.,Ltd.
Punch for creating a fan-shaped head. Finishing dies used in formers.
Product Sample : Dies for intricately shaped parts⑥
Material: WC-Co
Technology: Die-sinking and irregular micro-processing using wire-cut EDM ⇒ Mirror-finish by lapping
Products: Intricately shaped parts created in multiple-step former.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample ⑦: WC-Co 2-piece punch
Material: WC-Co
Technology: Irregular micro-processing via machining and wire-cut ⇒ Mirror-finish by lapping
Products: Creates hexagonal holes and hexalobular. Size for hexalobular ranges from T4 to T30.
Structure: Made of pin and its folder. They are fitted together with no space in-between.
Strengths: Life-span of die is improved dozens times better than high-speed steel.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample : Precision press die⑧
(Left) Material: SKH57 Technology: Micro precision processing by grinding ⇒ Mirror-finish by lapping Usage: This die is used to create indents onto thin metal sheets by pressing Structure: Die shown on the left shows the top of 1.85mm diameter pin head bearing eighteen .1mm high x .2mm wide projections. (Right) Material: SKH5 Technology: Micro-precision processing by grinding and EDM ⇒ lapping finish Usage: Press die parts for manufacturing glasses’frame
TOKYO BYORA KOKI Co.,Ltd.
Product Sample : Die parts for press processing⑨
(Left) Material: WC-Co Technology: Precision deep-hole processing using die-sinking EDM processing Precision: Position tolerance 0.002. Top hole has R0.16±0.005. Diameter and length tolerance is ±0.002 (Right) Material: WC-Co Technology: Grinding and polishing Precision deep⇒ -hole processing by wire-cut and die-sinking EDM top surface and hole interior⇒
finished by lapping Usage: Punch: creates two products.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample : Machine parts⑩
Material: WC-Co
Technology: Grinding, polishing ⇒ Precision deep-hole processing by wire-cut and die-sinking EDM processing
TOKYO BYORA KOKI Co.,Ltd.
Product Sample ②:Various Heading Dies Material:WC-Co
Technologies: Ultra-precise, irregular, and deep-hole processing by wire-cut and EDM ⇒ Mirror finish provided by lapping
Products:Screws, rivets, parts etc.
Note: No problem even if hole shape is irregular, stepped, or deep.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample :③ Special Heading Dies Material: WC-Co
Technology: Die-sinking and irregular micro-processing using wire-cut EDM ⇒ Mirror-finish by lapping
Products: Pins, contact points, and parts
Structure: (Left) Diameter of outer circular hole is 5mm. This die has a seamlessly integrated structure and does not involve nibs.
(Right)2-part dies made of opposing shapes. The parts that come in contact with products are created in precision so that there
will be no space in between, preventing burrs when manufacturing products with dies.
TOKYO BYORA KOKI Co.,Ltd.
Nib: Upper half has circular hole and lower half has an
o-shaped hole. Four rectilinear holes are formed by combining four parts.
Product Sample④:Nib of combination dies
Material: WC-Co
Technology: Irregular ultra-precise micro machining by wire-cut and die-milling EDM ⇒ Mirror finish provided by lapping
Products: Screws or parts with complex configuration
Note: Nib can be replaced when broken.
We can manufacture ultra-thin parts of 0.5mm thickness. We can also create paired dies stacking several nibs.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample ⑤: Four-part special dies
Material: SKH51
Technology: Ultra-precise micro processing by wire-cut and EDM ⇒ mirror finish by lapping
Structure: Special dies of four-part nib type. Effective part is 6.31 mm.
Photo on the right shows the nib and jigs set up.
TOKYO BYORA KOKI Co.,Ltd.
Punch for creating a fan-shaped head. Finishing dies used in formers.
Product Sample : Dies for intricately shaped parts⑥
Material: WC-Co
Technology: Die-sinking and irregular micro-processing using wire-cut EDM ⇒ Mirror-finish by lapping
Products: Intricately shaped parts created in multiple-step former.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample ⑦: WC-Co 2-piece punch
Material: WC-Co
Technology: Irregular micro-processing via machining and wire-cut ⇒ Mirror-finish by lapping
Products: Creates hexagonal holes and hexalobular. Size for hexalobular ranges from T4 to T30.
Structure: Made of pin and its folder. They are fitted together with no space in-between.
Strengths: Life-span of die is improved dozens times better than high-speed steel.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample : Precision press die⑧
(Left) Material: SKH57 Technology: Micro precision processing by grinding ⇒ Mirror-finish by lapping Usage: This die is used to create indents onto thin metal sheets by pressing Structure: Die shown on the left shows the top of 1.85mm diameter pin head bearing eighteen .1mm high x .2mm wide projections. (Right) Material: SKH5 Technology: Micro-precision processing by grinding and EDM ⇒ lapping finish Usage: Press die parts for manufacturing glasses’frame
TOKYO BYORA KOKI Co.,Ltd.
Product Sample : Die parts for press processing⑨
(Left) Material: WC-Co Technology: Precision deep-hole processing using die-sinking EDM processing Precision: Position tolerance 0.002. Top hole has R0.16±0.005. Diameter and length tolerance is ±0.002 (Right) Material: WC-Co Technology: Grinding and polishing Precision deep⇒ -hole processing by wire-cut and die-sinking EDM top surface and hole interior⇒
finished by lapping Usage: Punch: creates two products.
TOKYO BYORA KOKI Co.,Ltd.
Product Sample : Machine parts⑩
Material: WC-Co
Technology: Grinding, polishing ⇒ Precision deep-hole processing by wire-cut and die-sinking EDM processing