Machining small and large bores

There is a wide range of full bore operations in the die & mould sector: From large bores for guide pillars and deep bores for the cooling system to high-precision bores for ejector pins. MAPAL offers a comprehensive portfolio of drilling and reaming tools for the individual production steps.
On a rendered example component, an operation is highlighted.
Tool overview for the following machining steps:
  1. Piloting
  2. Drilling from solid
  3. Deep hole drilling
  4. Reaming
  5. Countersinking

Piloting

Deep bores for cooling systems are very common mainly in the area of plastic injection. In order to get good guidance for extra long drilling tools, it is recommended to pilot the bores with correspondingly shorter tools. MAPAL not only supplies the right products here, but also the corresponding professional support to ensure the goals in terms of roundness and precision.
Since the drilling processes are often carried out on inclined surfaces, users avoid bending and breaking the tools by piloting the bores.

  • MEGA-Pilot-Drill

    Solid carbide pilot drill
    • Pilot drill for deep bores with small diameters in steel and cast iron
    • Optimally matched to the deep drill MEGA-Deep-Drill
    • Increases the position accuracy of the bore
    • Offered in the diameter range 1-3 mm

  • Tritan-Spot-Drill-Steel

    NC pilot drill
    • Three-edged NC pilot drill for steel
    • Perfectly coordinated with the Tritan-Drill-Steel
    • Also suitable for difficult drilling situations
    • Offered in the diameter range 4-20 mm

Drilling from solid

Due to the multitude of bore sizes and features, the die & mould sector offers a wide range of solid drilling tools. Tap drills, guide bores for ejector pins and partial pin holes are just a few application examples.

  • ECU-Drill-Steel

    Solid carbide twist drill
    • Double edge twist drill with a wide range of applications
    • Highly economical machining of steel
    • Universal application
    • Proven geometries for high precision and process reliability
    • Good chip formation and chip removal

  • MEGA-Drill-Steel-Plus

    Solid carbide high-performance twist drill
    • Double edge high-performance twist drill for maximum productivity in steel machining
    • Optimised chip groove geometry
    • Modified cutting edge preparation
    • 30% more performance through cutting speed and feed rate compared to MEGA-Drill-Steel

  • MEGA-Drill-Hardened

    Solid carbide twist drill
    • Process-reliable machining of hardened workpiece materials up to 65 HRC
    • Coordinated micro and macro geometry for hard machining
    • New carbide substrate for maximum resistance to wear
    • Extremely temperature-resistant coating

  • Tritan-Drill-Steel

    Solid carbide high-performance twist drill
    • Three-edged geometry enables significantly higher feed rates and a significantly longer tool life
    • High position accuracy even in difficult machining situations
    • Self-centring chisel edge
    • Tapping at an angle possible up to max. 12°
    • Safe chip removal due to the spherical shape of main cutting edge

  • MEGA-Drill-Reamer

    Solid carbide drill reamer
    • Two working steps – drilling and reaming – combined in a single tool
    • Optimised reaming cutting edge
    • Reduction of productive and non-productive times
    • Bore tolerance ≥ IT7

  • Indexable insert drill - QTD Steel

    Indexable insert drill
    • Cost-effective system with indexable inserts that can be swapped out for steel machining
    • Hardened steel holder with coiled cooling channels
    • High degree of radial run-out accuracy
    • Very good chip formation and safe chip removal

  • Tritan-Step-Drill-Steel

    Solid carbide step drill
    • Three edge step drill for thread sizes from M5 to M16
    • With 90° countersink
    • Self-centring chisel edge
    • Maximum positional accuracy
    • Best chip breakage properties

Deep hole drilling

Deep drilling up to 40 and 50xD is very common in the die & mould sector. This type of drilling requires specialised tools. The most common are single-lip drills, with these tools being used on special drilling machines. Solid carbide drills are a real alternative for small and medium-sized components with bore diameters of up to 12 mm. The deep hole drills are equipped with two guiding chamfers and thus ensure good guidance in the bore.

  • MEGA-Deep-Drill

    Solid carbide deep drill
    • Process-reliable and efficient production of deep bores up to 40xD
    • Up to 80 percent shorter machining times compared to single-lip drills
    • Self-centring chisel edge
    • Four guiding chamfers for high bore quality

Reaming

The bores for certain pins and positions require a high degree of accuracy in terms of roundness and diameter. A final reaming process is therefore mandatory. The pre-machining of these bores must also meet the requirements of the reaming tools in order to achieve the desired results.

Decades of expertise at MAPAL means a wide range of available products that are individually selected for specific requirements.

  • MEGA-Drill-Reamer

    整体硬质合金钻孔铰刀
    • 两个工序 - 钻孔和铰孔 - 结合在一个刀具中
    • 优化的铰孔切削刃
    • 减少加工时间和非加工时间
    • 钻孔公差 ≥ IT7

  • FixReam FXR

    整体硬质合金高性能铰刀
    • 以 H7 公差对孔进行精加工
    • 钢和铸铁的经济型加工
    • 用于通孔和盲孔 
    • 具有四到八个切削刃的高进给率

  • CPReam CPR

    整体硬质合金交换式铣头铰刀
    • 带有CFS链接的经济型交换式铣头系统
    • 以 H7 公差对孔进行精加工
    • 用于通孔和盲孔
    • 5 µm 的高度径向跳动精度

  • WN50 快速调节铰刀

    手用铰刀
    • 快调手用铰刀
    • 特别适合维修工作
    • 操作简单
    • 调节范围大

锪钻

对每个孔的边缘上通常用锥形锪钻进行精加工。锪孔是一种简单的应用，但有些孔具有特殊的表面质量要求。常用刀具由整体硬质合金制成，但也由高速钢制成。由于更好的性能和更高的表面质量，MAPAL公司的创新锥形锪钻为锪孔操作还提供了一定的优势。

  • 锥形锪钻 90°

    高速钢/整体硬质合金锥形锪钻
    • 具有不均匀分布的精密锥形锪钻 90°
    • 更高的精度和改进的表面值 
    • 减少的轴向力和径向力
    • 振动明显的减少
    • 提高的切削参数以实现最大生产率