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Latest update: 25/05/2022 11:33:59

Estrolabo Co.,Ltd.

We are a "HOSOANAYA" which engages in fine hole electric discharge machining.

We are a manufacturer which processes metal with fine hole electric discharge machining. We are able to drill holes the minimum diameter of which is Ø0.12 to 0.15 mm. We flexibly meet clients' needs: For example, we are able to drill inclined, circular dividing, deep, or relief holes. Our effective cooperation system allows us to perform processes ranging from procuring materials to completing all the required processes. 

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Sales Pitch

Our business lineup and merits
Contract-based fine hole electric discharge machining. On a contract basis, we drill and process holes the diameter of which ranges from Ø0.1 to 3.0 mm. 
We are able to process hard materials which are difficult to process with cutting machining. Also, we are able to drill holes in spherical or curved surfaces or slopes. We are able to process materials, regardless of whether they are hard, soft, or sticky, so long as they can be energized.  
We are able to achieve an aspect ratio (the ratio between the hole diameter and the processed depth) of more than 200. We are able to drill a Ø0.3 mm hole to a depth of 100 mm. (Please note that the aspect ratio decreases in holes whose diameter is up to Ø0.2 mm.)
[Materials that we have so far processed]
Stainless steel, steel, hardened steel, brass, aluminum, titanium, cemented carbide, tungsten, Hastelloy, tantalum, molybdenum, Inconel, oxygen‐free copper, niobium, constantan, amorphous alloys, cermet, Kovar, graphite, sintered diamond, and zirconium
Main purposes of the holes and examples of using the holes
[Main purposes of the holes]
-Start holes for wire-electrical discharge machining
-Lead holes (which are used as pilot holes for finishing)
-Air, oil, or cooling holes (We are able to connect holes to form an L- or T-shaped hole.)
-Sensor holes (bottomed holes)
-Artificial defects 
-Holes for removing broken taps/drills
[Examples of use of the holes]
-Cooling holes in plastic molding dies
-Starting holes for wire-electrical discharge machining of precision molds
-Starting holes for processing multiple pieces of sheet components (Holes are formed in the layered sheet components.)
-Absorption nozzle holes for semiconductor components
-Air holes in medical drills
-Oil holes in cutting tools
-Holes for wires for retaining bolts
-Artificial defects for abrasion resistance tests
-Holes for inserting thermocouples