MN 2012 Holemaking (22 Mb)
499Pages

WELCOME TO SECO HOLEMAKING

Contents Alphanumerical index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Seco Feedmax™ 4- 6 7 - 13 Range overview / Code key / Set up . . . . . . . . . . . . . . . . . . . 14 - 20 SD203 / SD203A / SD205A / SD206 / SD206A / SD207A / SD212A / SD216A / SD220A / SD225 / SD230A . . . . . . . . . . 21 - 59 Guidelines and cutting data . . . . . . . . . . . . . . . . . . . . . . . . . . 60 - 65 SD203 -M / SD203A -M / SD205A -M / SD203 -T / SD203A -T SD205A -T / SD203A-N / SD205A-C1, -C2,...

At Seco we make every effort to give you the best in drilling, reaming and boring. Our comprehensive range of holemaking tools are second-to-none We have years of experience of 'challenging' and metal cutting expertise consistently yields new and more productive solutions. But most Importantly we pride ourselves on offering the highest service level, and on being engaged In making our customers Seco Tools will take responsibility and assist In all areas to create the hole, Including technical troubleshooting. We supply complete holemaking know-how, Including drilling, reaming and boring -...

HOLEMAKING – Methods Rotating applications Drilling see pages 14-225. Circular interpolation For more info see MN Milling catalogue. Boring see pages 354-469. Circular interpolation For more info see MN Solid end mills catalogue. HOLEMAKING – Methods 8 Chamfering and/or deburring For more info see MN Milling catalogue. Threading For more info see MN Milling catalogue. Reaming see pages 226-353.

HOLEMAKING – Methods Non rotating applications Drilling see pages 14-225. Turning internal For more info see MN Turning catalogue. Reaming see pages 226-353. Threading internal For more info see MN Turning catalogue. 9

HOLEMAKING Reaming Boring Drilling TOOL GUIDE HOLEMAKING 10

HOLEMAKING Seco Feedmax, Crownloc or Perfomax are used to drill holes from 0,1 to 160 mm in diameter, with tolerances from IT8 to IT12. For already cast holes, rough boring or semi-finishing is often used, with Bridge Bars and Jumbo Bridge Bars used for the large diameters. Finally, high quality holes are made with reaming and finish boring tools, reaching tolerances of IT5 or IT6. Rough boring Cast holes Fine boring Rough: Fine: HOLEMAKING 11

What are you looking for in making a hole? Positioning accuracy Seco Feedmax, A750 rough boring heads and the whole range of fine boring heads are the holemaking tools that offer the best positioning accuracy. Hole geometry For excellent hole geometry, such as as roundness and stralghtness, all of Seco's drilling, boring and reaming tools Where the boring heads will guarantee the best results on stralghtness. Surface finish For a really smooth hole surface Blflx/Preclflx Is your first choice, with all fine boring heads as a possibility

Drilling range - Choice of drill

Seco Feedmax™ – High performance machining Reduce your drilling costs with Seco Feedmax™ Features: Advantages: Benefits: • Latest carbide technology • Low friction coating • High strength geometry • High cutting data • Process security • Versatility • Long tool life • Cost reduction through - Increased output - Component quality Seco Feedmax™ – High performance machining 14

Seco Feedmax™ - Range overview Seco Feedmax™ - For high performance machining Seco Feedmax™ - For difficult to machine materials Seco Feedmax™ - For specific applications 1) Variations can occurdepending on the material and the cutting data used. 2) Drill depth, cutting data, coolant pressure and material can cause deterioration of the surface finish.

Seco Feedmax™ - Code keys Code key Solid carbide drill Solid carbide drill: Shank Right diameter hand T- Geometry for titanium alloys C1 - Geometry for CFRP and exiting In CFRP C2 - Geometry for CFRP and exiting In I.e. TI or Al C3 - Geometry for CFRP and GFRP Solid carbide drill: Internal 'through'

Drills with cylindrical shanks can be used with Shrlnkflt holders, hydraulic chucks or collet chucks. For best result keep run-out <0,02 mm. Keep the total Indicated run-out of the drill within 0,04 mm, for drills with Whistle Notch shank. The stability of the application Is Important to obtain the best tool life and hole accuracy. Check the condition of the machine spindle, fixture and Muring of the component to secure maxi- Unstable conditions can cause tool breakages. Tool life Drills should not be used with flank wear exceeding 0,1-0,3 mm measured at the largest point. Shrlnkflt holder...

Seco Feedmax™ - Methods Hole entrance on a machined surface No pre-drilling or entrance feed When using a longer drill It's needed. recommended to drill a pilot hole. Angled hole exits Before hole exit reduce the feed/rev by 50%. Irregular/Angled hole entrance If irregular or angle entrance use Pre drill with a short standard feedmax. Machine a flat using an end mill from the Seco range. Irregular hole entrance Angled hole entrance Coolant recommendations * If lower coolant pressure is used adjust by reducing cutting data accordingly.

Seco Feedmax™ - Methods 1. Drill a pilot hole 2-3 x D. Use a standard drill with the same diameter I.e. SD203A (with 140° point angle) 2. Enter the hole with the machine spindle stopped or use a low rpm (500). Stop 2 mm above the pilot hole depth. 3. Start the machine spindle and the coolant, drill with the recommended cutting data. (No peck drilling). 4. When reaching full depth, reduce the rpm to 500 and then retract the drill with 4 times the work feed to avoid retraction marks.

Seco Feedmax™ - Methods Machining Methods - Micro drills Pilot hole For optimal hole tolerance and positioning accuracy use an SD22 pilot drill of the same diameter. Below 1 mm diameter drill we highly recommend to use a pilot drill. For long chipping materials a pecking cycle should be used. Generally peck every 1 x D drilling depth.