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Knives×トキワロイ工業 - List of Manufacturers, Suppliers, Companies and Products

Knives Product List

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Brazing technology for precision tools (carbide × stainless steel)

Brazing technology for precision tools (carbide × stainless steel)

Soldering processing that minimizes the occurrence of pinholes and warping in the solder layer. Also compatible with precision machined products using SUS304 series soldered materials!

Typically, precision machined products using cemented carbide are often made from solid materials. One reason for this is that the stricter the required precision, such as surface roughness and geometric tolerances, the easier it is to control the machining of solid materials. However, even with brazed products where only the applicable parts are made of cemented carbide, if there is sophisticated brazing technology, it is possible to achieve precision machining in subsequent processes without issues, and to meet the required precision of the finished product. In fact, considering cost and weight, solid materials made entirely of cemented carbide may not always be the optimal material choice for certain applications. Our company also supports precision machined products using brazed items made of cemented carbide and austenitic stainless steel (SUS304 series) as the base material. For more details, please refer to the "Cemented Carbide Machining Technology and Idea Introduction Special Feature" document.

  • Capacitor

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Joint design and brazing technology that covers the tip protrusion with hard material.

Joint design and brazing technology that covers the tip protrusion with hard material.

By bonding carbide to the convex shape of the tool tip, we enhance wear resistance without compromising the functional shape of the tip.

If the tip of the tool has a specific shape, it is considered that the shape itself possesses functionality. However, if the physical properties of the tip do not have sufficient wear resistance against friction with the workpiece, there is a possibility that the original functionality may be compromised due to shape changes caused by wear. Therefore, a bonding design that covers the surface of the tip with a hard material without altering the mechanical properties or shape of the tip is effective. When cutting away the surface of the tool's base material at the tip and replacing it with a hard alloy, joint design that takes bonding strength into account and advanced brazing techniques are required. Our company can accommodate the design and manufacturing of such hard alloy brazing processes. For more details, please refer to the "Processing Technology Special Feature."

  • Other processing machines

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Founded in 1955: Tokiwa Roi Industrial Co., Ltd. Company Profile

Founded in 1955: Tokiwa Roi Industrial Co., Ltd. Company Profile

We create carbide products tailored to the specific challenges faced by customers in various fields! We specialize in small lot production and custom orders!

Since our establishment in 1955, we have responded to the detailed needs of customers in various fields through the manufacturing of cemented carbide for over half a century. The strengths we have cultivated during this time are our production system capable of "small lot production" and "custom-made orders." Moving forward, we aim to be a cemented carbide manufacturer that utilizes these strengths to solve challenges in the field. *For more details, please refer to the PDF document or feel free to contact us.

  • Contract manufacturing
  • Processing Contract
  • alloy

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[Attention those troubled by warping and bending during hard soldering] Exquisite soldering techniques

[Attention those troubled by warping and bending during hard soldering] Exquisite soldering techniques

Soldering process that minimizes the occurrence of pinholes and warping in the wax layer.

Typically, precision machined products using carbide are often made from solid materials. One reason for this is that the more stringent the required precision, such as surface roughness and geometric tolerances, the easier it is to control the machining of solid materials. However, even in brazed products where only the applicable parts are made of carbide, if there is sophisticated brazing technology, it is possible to achieve precision machining in subsequent processes without issues, while also meeting the required precision of the finished product. In fact, considering cost and weight, solid materials made entirely of carbide may not always be the optimal material choice for certain applications. Our company also supports precision machined products using carbide and austenitic stainless steel (SUS304 series) as the base material for brazed items. For more details, please refer to the "Processing Technology Special Feature" document.

  • Capacitor

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[Explanatory Material] Elements Necessary for Precision Brazing *Currently Being Offered

[Explanatory Material] Elements Necessary for Precision Brazing *Currently Being Offered

A detailed explanation of the factors that determine the precision of the representative technology "brazing," used for the precise joining of fine precision parts and thin plates!

"Braze welding," used for precision joining of fine precision parts and thin plates, is determined by various factors regarding its accuracy. This document explains the "three main factors that determine the accuracy of brazing," and provides detailed explanations for each factor. [Contents] - Selection of suitable filler metal and flux for the base material - Temperature management from heating to cooling - Design of appropriate joint sections, etc. If you are interested, please feel free to download the document or contact us.

  • Other cutting tools

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