Tapered Head Punch - RX Coating (Al-Cr Coating + Nitriding Treatment) -
Caution
Product Description
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For complete product overview and details on Tapered Head Punches －RX Coating－ see the sections below:
Drawing / Product specification
(6) ⋅ (D) ⋅ (D+3) are reference values.
The tip edges are slightly rounded.
| Shank diameter DTolerance | Material Hardness | Catalog No. | ||
|---|---|---|---|---|
| Type | Tip shape | B Tip length | ||
| Dm5 | Equivalent to SKH51 61～64HRC Surface 3100HV Taper ring NAK80 37～43HRC | RX-TSSH |
|
|
| Powdered high-speed steel 64～67HRC Surface 3100HV Taper ring NAK80 37～43HRC | RX-TSPH | |||
Specification table
| Catalog No. | L | 0.01 mm increments min. P max. | B | H | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | Tip shape | B Tip length | D | ||||||||
| RX-TSSH RX-TSPH |
|
| 8 | 60 | 70 | 80 | 90 | 100 | 3.00～7.99 | 13 | 13 |
| 10 | 60 | 70 | 80 | 90 | 100 | 3.00～9.99 | 15 | ||||
| 13 | 60 | 70 | 80 | 90 | 100 | 6.00～12.99 | 18 | ||||
| 16 | 60 | 70 | 80 | 90 | 100 | 10.00～15.99 | 19 | 21 | |||
| 20 | 60 | 70 | 80 | 90 | 100 | 13.00～19.99 | 25 | ||||
| 25 | 60 | 70 | 80 | 90 | 100 | 18.00～24.99 | 30 | ||||
|
| 8 | 60 | 70 | 80 | 90 | 100 | 3.00～7.99 | 19 | 13 | ||
| 10 | 60 | 70 | 80 | 90 | 100 | 3.00～9.99 | 15 | ||||
| 13 | 60 | 70 | 80 | 90 | 100 | 6.00～12.99 | 18 | ||||
| 16 | 60 | 70 | 80 | 90 | 100 | 10.00～15.99 | 25 | 21 | |||
| 20 | 60 | 70 | 80 | 90 | 100 | 13.00～19.99 | 25 | ||||
| 25 | 60 | 70 | 80 | 90 | 100 | 18.00～24.99 | 30 | ||||
P＞D-0.03ℓ＝0 if P＞D-0.03 for a round punch、D -0.01/-0.03 (press-in lead) is not included
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Alterations
Related information
● Tapered head punches relieve stress concentration, providing greater
head strength than conventional heavyload punches.
● These products were developed for heavy-load applications, such as
punching of high-tensile steel sheets with tensile strength of 980MPa
(100kgf/mm2) or higher, spring steel, and hardened steel.
● When used with the accessory taper rings, the tapered head punches
eliminate the need for machining of tapered holes in the punch plates
and for machining to align the thickness of the plate and punch head.
● Because the head of a tapered head punch is interchangeable with that
of a heavy-load punch, the retainer for a heavy-load punch can be used.
■Note
● The head thickness tolerance of a tapered head punch, 8+0.03/+0.01, is achieved by machining a match between the actual individual punch and its taper ring.
Be sure to use a taper ring that has the same ID number as the punch. If the punch is combined with a tapered ring that has a different ID number, the head thickness may deviate from the tolerance listed in the catalog.
● When a punch is replaced, replace both punch and taper ring as a set.(The punch and taper ring are not sold individually.)